| 100% | FUSION | 6 | The process of joining two or more things into one |
| 45% | ISOTOPE | 7 | One of two or more atoms with the same atomic number that contain different numbers of neutrons |
| 42% | MERGE | 5 | Join two things into one |
| 41% | SEQUENCE | 8 | Successive order of two or more things |
| 41% | PLANTING | 8 | Process of putting a bush or seed into the ground |
| 40% | MASHUP | 6 | Blend of two or more things, such as Christmas and Hanukkah |
| 40% | UNION | 5 | Joining together of two or more parties |
| 40% | LSD | 3 | Steve Jobs called it "one of the two or three most important things I have done in my life" |
| 39% | UTES | 4 | One of the two most recent Pac-12 members |
| 39% | ESSENCE | 7 | The most significant quality or aspect of a thing |
| 39% | USERNAME | 8 | One of two things needed to log into a computer |
| 38% | CHOICE | 6 | To have the ability to pick one of two things |
| 38% | ADD | 3 | Find the sum of two or more numbers |
| 38% | ADDED | 5 | Found the sum of two or more numbers |
| 37% | EONS | 4 | Two or more of 39 Across |
| 37% | ACCRETION | 9 | The process of growth or increase |
| 36% | CREATION | 8 | The process of bringing something into existence |
| 36% | WHATSTHAT | 9 | ___? (with 91 Across) pron. the farther away of two things or ideas being discussed |
| 36% | INGESTION | 9 | The process of taking food into the body |
| 36% | DIGESTION | 9 | The process of breaking down food into nutrients |
| 36% | FAIRYTALE | 9 | One of many adapted in “Into the Woods” |
| 36% | KATAKANA | 8 | One of the Japanese collections of syllabic symbols most often used in transcribing foreign words into Japanese |
| 35% | YOUSE | 5 | Addressing two or more people, the north |
| 35% | SCHWARZENEGGER | 14 | Arnold, one of the most popular bodybuilders, who served as Governor of California for two terms |
| 35% | COMPARE | 7 | Weigh the pros and cons of two or more products |
| 35% | ICINGPRICING | 12 | The process of deciding how much the frosting should cost? |
| 35% | BLEND | 5 | Mix two or more ingredients in the kitchen |
| 35% | GOVERNMENTBONDS | 15 | Treasury notes ... or what the two sides of 17-, 23-, 37- and 52-Across are joined with? |
| 34% | WHATSTHEMEANINGOFTHIS | 21 | ___? pron. the nearer of two things or ideas being discussed |
| 34% | ALLOY | 5 | Amalgam made from mixing two or more of 9a |