| TRI | "Angle" or "cycle" starter |
| TRI | "Bi" plus one? |
| TRI | "Ceps" or "angle" starter |
| TRI | "Pod" or "angle" prefix |
| TRI | "Pod" or "cycle" prefix |
| TRI | "Three" prefix |
| TRI | "Uni-" + "bi-" |
| TRI | 25% of dodeca- |
| TRI | 29-Down prefix |
| TRI | 30% of 1 Down |
| TRI | 32+-mile challenge, for short |
| TRI | 32+-mile competition, familiarly |
| TRI | 52 Down minus one? |
| TRI | A "T" in TNT |
| TRI | A quarter of dodeca- |
| TRI | Angle forerunner |
| TRI | Angle opener |
| TRI | Angle or pod preceder |
| TRI | Angle or state lead-in |
| TRI | Angle prefix |
| TRI | Angle starter |
| TRI | Angle starter? |
| TRI | Angle type |
| TRI | Angular attachment? |
| TRI | Angular head? |
| TRI | Angular opening? |
| TRI | Angular prefix |
| TRI | Angular start? |
| TRI | Annual opener |
| TRI | Arm muscle, briefly |
| TRI | Arm muscle, for short |
| TRI | Arm muscle, informally |
| TRI | Arm muscle, slangily |
| TRI | Athlete's intro? |
| TRI | Before angle or cycle |
| TRI | Beginning of a cycle? |
| TRI | Bi follower |
| TRI | Bi- + one |
| TRI | Bi- + uni- |
| TRI | Bi- plus one |
| TRI | Chemical prefix |
| TRI | Chemistry prefix |
| TRI | City or state lead-in |
| TRI | Cycle attachment? |
| TRI | Cycle beginning |
| TRI | Cycle starter |
| TRI | Cycle starter? |
| TRI | Denotes three |
| TRI | Diamond-pushup target, for short |
| TRI | Dodeca- 39-Down |
| TRI | Dodeca- fraction |
| TRI | El ___ (nickname for the Mexican national soccer team) |
| TRI | El ___, nickname of Mexico's national football team |
| TRI | Endurance race, briefly |
| TRI | Endurance race, familiarly |
| TRI | First "T" in TNT |
| TRI | First part of TNT |
| TRI | Geometric prefix |
| TRI | Geometrical prefix |
| TRI | Grueling Olympic race, for short |
| TRI | Half of hex |
| TRI | Half of hexa- |
| TRI | Half of hex- |
| TRI | Half of sex? |
| TRI | Half of sex- |
| TRI | Head of state? |
| TRI | Hex broken in half? |
| TRI | Hex halved |
| TRI | Hexa- halved |
| TRI | Hex- divided by two |
| TRI | Hex- halved |
| TRI | Hex-, halved |
| TRI | Ironman race, briefly |
| TRI | Ironman race, for short |
| TRI | Lateral lead-in |
| TRI | Lateral opening? |
| TRI | Lead-in to "angle" to make a shape that may be obtuse |
| TRI | Lead-in to tip or angle |
| TRI | Lead-in with angle |
| TRI | Long-distance swimming/cycling/running race, for short |
| TRI | Maran or mester opener |
| TRI | Meter leader |
| TRI | Metric prefix |
| TRI | Mono- plus bi- |
| TRI | Muscle used in a pull-up, informally |
| TRI | Muscle used in dip exercises, informally |
| TRI | Muscle worked by doing dips, for short |
| TRI | New York's ___-state area |
| TRI | Not quite quadri- |
| TRI | Numeric prefix |
| TRI | Numerical prefix |
| TRI | Numerical prefix for "cycle" or "pod" |
| TRI | Numerical prefix for angle |
| TRI | Numerical prefix for pod |
| TRI | Numerical prefix that means "three" |
| TRI | Numerical prefix that sounds encouraging |
| TRI | Numerical prefix that sounds like 124 Across |
| TRI | Numerical prefix that sounds like a verb |
| TRI | One "T" of TNT |
| TRI | One T in TNT |
| TRI | One less than quadri- |
| TRI | One less than quad- |
| TRI | One less than tetra- |
| TRI | One more than bi- |
| TRI | Part of 52-Across |
| TRI | Part of 8-Down |
| TRI | Part of TNT |
| TRI | Piece of TNT? |
| TRI | Plane heading? |
| TRI | Pod opener? |
| TRI | Pod opening |
| TRI | Pod or cycle preceder |
| TRI | Pod preceder |
| TRI | Pod starter |
| TRI | Prefix between bi- and quadri- |
| TRI | Prefix between bi- and quad- |
| TRI | Prefix between bi- and tetra- |
| TRI | Prefix for "angle" or "athlete" |
| TRI | Prefix for "angle" or "cycle" |
| TRI | Prefix for "angle" or "focal" |
| TRI | Prefix for "angle" or "focals" |
| TRI | Prefix for "angle" or "pod" |
| TRI | Prefix for "athlete" |
| TRI | Prefix for "athlete" at the Ironman |
| TRI | Prefix for "athlete" or "angle" |
| TRI | Prefix for "athlete" or "cycle" |
| TRI | Prefix for "ceratops" or "angle" |
| TRI | Prefix for "cycle" |
| TRI | Prefix for "cycle" and "ceratops" |
| TRI | Prefix for "cycle" or "angle" |
| TRI | Prefix for "cycle" or "athlete" |
| TRI | Prefix for "cycle" or "focals" |
| TRI | Prefix for "cycle" or "pod" |
| TRI | Prefix for "focals" and "cycle" |
| TRI | Prefix for "focals" or "athlete" |
| TRI | Prefix for "lingual" |
| TRI | Prefix for "pod" or "angle" |
| TRI | Prefix for "pod" or "athlete" |
| TRI | Prefix for "pod" or "ceratops" |
| TRI | Prefix for "pod" or "cycle" |
| TRI | Prefix for "pod" or "focals" |
| TRI | Prefix for "pod" or "tip" |
| TRI | Prefix for angle |
| TRI | Prefix for angle or athlete |
| TRI | Prefix for angle or pod |
| TRI | Prefix for athlete or cycle |
| TRI | Prefix for color |
| TRI | Prefix for cycle |
| TRI | Prefix for cycle and angle |
| TRI | Prefix for cycle or angle |
| TRI | Prefix for cycle or pod |
| TRI | Prefix for cycle that means "three" |
| TRI | Prefix for pod |
| TRI | Prefix for pod and motor |
| TRI | Prefix for pod or cycle |
| TRI | Prefix for -angle |
| TRI | Prefix for -athlete or -cycle |
| TRI | Prefix for -pod or -athlon |
| TRI | Prefix in many chemical names |
| TRI | Prefix meaning "three" |
| TRI | Prefix meaning ''three'' |
| TRI | Prefix meaning 3 |
| TRI | Prefix meaning three |
| TRI | Prefix meaning three that is used with "angle" or "cycle," which originated from Greek |
| TRI | Prefix on many chemical compound names |
| TRI | Prefix that can come before ads, age or dent |
| TRI | Prefix that denotes "three" |
| TRI | Prefix that denotes "three" and is used with "pod" or "fold" |
| TRI | Prefix that goes between "bi-" and "quadri-" |
| TRI | Prefix that means "three" |
| TRI | Prefix that means more than "bi-" but less than "quadri-" |
| TRI | Prefix that sounds like 67-Down |
| TRI | Prefix that sounds like an attempt |
| TRI | Prefix that sounds pursuable |
| TRI | Prefix that's half of "hex-" |
| TRI | Prefix that's more than "bi-" |
| TRI | Prefix that's more than "bi-" but less than "quadri-" |
| TRI | Prefix that's three times as much as 11-Across |
| TRI | Prefix to indicate "two plus one" |
| TRI | Prefix with "angle" |
| TRI | Prefix with "angle" for a common shape |
| TRI | Prefix with "angle" for a geometric shape |
| TRI | Prefix with "angle" for a three-sided figure |
| TRI | Prefix with "angle" meaning "three" |
| TRI | Prefix with "angle" meaning three sides |
| TRI | Prefix with "angle" or "athlete" |
| TRI | Prefix with "angle" or "cycle" |
| TRI | Prefix with "angle" or "fecta" |
| TRI | Prefix with "angle" or "pod" |
| TRI | Prefix with "angle" to mean a geometric figure |
| TRI | Prefix with "athlete" or "angle" |
| TRI | Prefix with "athlete" or "cycle" |
| TRI | Prefix with "ceratops" to mean a dinosaur |
| TRI | Prefix with "color" or "cycle" |
| TRI | Prefix with "cycle" |
| TRI | Prefix with "cycle" for a little kid's three-wheeler |
| TRI | Prefix with "cycle" or "angle" |
| TRI | Prefix with "cycle" or "lateral" |
| TRI | Prefix with "cycle" or "pod" |
| TRI | Prefix with "cycle" or "state" |
| TRI | Prefix with "lingual" |
| TRI | Prefix with "mester" or "fecta" |
| TRI | Prefix with "pod" for a three-legged camera stand |
| TRI | Prefix with "pod" or "cycle" |
| TRI | Prefix with "pod" or "mester" |
| TRI | Prefix with "state" and "cycle" |
| TRI | Prefix with "state" or "angle" |
| TRI | Prefix with "-pod" |
| TRI | Prefix with Cities |
| TRI | Prefix with angle |
| TRI | Prefix with angle or athlete |
| TRI | Prefix with angle or borough |
| TRI | Prefix with angle or color |
| TRI | Prefix with angle or cycle |
| TRI | Prefix with angular |
| TRI | Prefix with annual |
| TRI | Prefix with athlete |
| TRI | Prefix with athlete or angle |
| TRI | Prefix with atomic |
| TRI | Prefix with axial |
| TRI | Prefix with borough |
| TRI | Prefix with centennial |
| TRI | Prefix with chloride |
| TRI | Prefix with chord |
| TRI | Prefix with city |
| TRI | Prefix with city or centennial |
| TRI | Prefix with city or state |
| TRI | Prefix with color |
| TRI | Prefix with color or cycle |
| TRI | Prefix with color or state |
| TRI | Prefix with corn or corder |
| TRI | Prefix with corn or cycle |
| TRI | Prefix with corn or pod |
| TRI | Prefix with county |
| TRI | Prefix with county or borough |
| TRI | Prefix with cycle |
| TRI | Prefix with cycle or angle |
| TRI | Prefix with cycle or athlete |
| TRI | Prefix with cycle or city |
| TRI | Prefix with cycle or color |
| TRI | Prefix with cycle or pod |
| TRI | Prefix with cycle or sect |
| TRI | Prefix with cycle or state |
| TRI | Prefix with glyceride |
| TRI | Prefix with lateral |
| TRI | Prefix with lateral or lingual |
| TRI | Prefix with lingual |
| TRI | Prefix with lingual or lateral |
| TRI | Prefix with literal or lateral |
| TRI | Prefix with nucleotide |
| TRI | Prefix with oxide |
| TRI | Prefix with pod |
| TRI | Prefix with pod or sect |
| TRI | Prefix with pod to mean a stand for supporting a camera |
| TRI | Prefix with saccharide or glyceride |
| TRI | Prefix with saccharides |
| TRI | Prefix with section or cycle |
| TRI | Prefix with sodium |
| TRI | Prefix with state |
| TRI | Prefix with state or color |
| TRI | Prefix with syllabic |
| TRI | Prefix with valent |
| TRI | Prefix with -ceps |
| TRI | Prefix with -ceratops |
| TRI | Prefix with -cycle |
| TRI | Prefix with -fecta |
| TRI | Prefix with -graph |
| TRI | Prefix with -hedron |
| TRI | Prefix with -logy |
| TRI | Prefix with -mester |
| TRI | Prefix with -nomial |
| TRI | Prefix with -partite |
| TRI | Prefix with -plex |
| TRI | Prefix with -pod or -partite |
| TRI | Prefix with -sect |
| TRI | Pushup muscle, informally |
| TRI | Quadri- minus one |
| TRI | Quad- minus one |
| TRI | Quarter of dodeca- |
| TRI | Race consisting of three sports, for short |
| TRI | Race in which one begins in a wetsuit, for short |
| TRI | Race that may end with a marathon, for short |
| TRI | Race that requires a swimsuit, helmet and running shoes, for short |
| TRI | Race whose competitors put on shoes partway through, casually |
| TRI | Sect leader? |
| TRI | Sect starter? |
| TRI | Section leader? |
| TRI | Star opening? |
| TRI | Start for angle or athlete |
| TRI | Start for angle or cycle |
| TRI | Start for athlete or angle |
| TRI | Start for athlete or atomic |
| TRI | Start for athlete or color |
| TRI | Start for athlete or cycle |
| TRI | Start for atomic or athlete |
| TRI | Start for cycle |
| TRI | Start for cycle or centennial |
| TRI | Start for focals or cycles |
| TRI | Start for lateral or cycles |
| TRI | Start for lingual or lateral |
| TRI | Start for plane or cycle |
| TRI | Start of a cycle? |
| TRI | Start of some cycles |
| TRI | Start of some cycles? |
| TRI | Start to color |
| TRI | Start to cycle |
| TRI | Start to cycle? |
| TRI | Starter for 60 Across |
| TRI | Swimming/biking/running event, informally |
| TRI | Swimming/cycling/running competition, for short |
| TRI | Swimming/cycling/running race, casually |
| TRI | Swimming-cycling-running competition, casually |
| TRI | Swim-bike-run event, for short |
| TRI | Swim-bike-run race, for short |
| TRI | TNT component? |
| TRI | TNT element? |
| TRI | TNT part |
| TRI | Tetra minus 1 |
| TRI | Tetra- minus one |
| TRI | The "T" in TNT |
| TRI | The first "T" in "TNT" |
| TRI | The first "T" in 36-Down |
| TRI | The first "T" in TNT |
| TRI | The first "T" of TNT |
| TRI | The first T in TNT |
| TRI | Three (Pref.) |
| TRI | Three (prefix) |
| TRI | Three at the start |
| TRI | Three's prefix |
| TRI | Three, in combinations |
| TRI | Three, in word combinations |
| TRI | Three, up front |
| TRI | Three: Prefix |
| TRI | Three-headed? |
| TRI | Three-legged race, familiarly? |
| TRI | Three-part prefix |
| TRI | Three-part race, for short |
| TRI | Three-sport event, for short |
| TRI | Three-sport race, for short |
| TRI | Three-way |
| TRI | Two less than "penta-" |
| TRI | Two less than penta |
| TRI | Two less than penta- |
| TRI | Uni- + bi- |
| TRI | Uni- times three |
| TRI | Upper arm muscle, for short |
| TRI | Upper-arm muscle, informally |
| TRI | Weekly opening |
| TRI | What comes after bi- |
| TRI | What the first "T" in "TNT" stands for |
| TRI | ___Star Pictures |
| TRI | ____ Star Pictures |
| TRI | ___-State area |
| TRI | ___-color pasta |
| TRI | ___-color pasta salad |
| TRI | ___-pod |
| TRI | ___-state |
| TRI | ___-state area |
| TRI | ___-state area (N.Y., N.J. and Conn., e.g.) |
| TRI | ___-state area, New York |
| TRI | ___-tip (beef cut) |
| TRI | ___-tip (cut of beef) |
| TRI | __-state area |
| TRI | __-tip steak |
| TRI | __-tip: beef cut |