| 100% | KAPPA | 5 | Symbol used to represent Einstein's gravitational constant |
| 62% | HBAR | 4 | Symbol used to represent the reduced Planck constant |
| 53% | NUMERALS | 8 | Symbols used to represent numbers |
| 51% | KAPPA | 5 | Symbol of Einstein's gravitational constant |
| 50% | NOTATION | 8 | System of symbols used to represent numbers |
| 42% | ACORN | 5 | Symbol used to mark England's National Trails |
| 38% | HASHTAG | 7 | Symbol used to highlight words on Instagram |
| 38% | HASHTAG | 7 | Symbol used to find topics on Twitter |
| 38% | ICONS | 5 | Images used to represent apps |
| 37% | SIGN | 4 | Use a closed fist to represent the letter S, say |
| 37% | LOGO | 4 | Image used to represent a company |
| 37% | NOTCH | 5 | A symbol used to tally something, such as a cut on a gunfighter's barrel |
| 37% | PHI | 3 | Greek letter used to represent magnetic flux |
| 37% | ARROWS | 6 | Three ___, symbol used to cross out swastikas |
| 37% | FERMATA | 7 | Musical symbol used to prolong a note |
| 36% | ATS | 3 | Symbols used to call people out on Twitter, for short |
| 36% | DIGRAM | 6 | Two letters used to represent a single sound |
| 36% | SYMBOLS | 7 | Images used to represent, like clocks for time |
| 36% | LEEKS | 5 | Vegetables used to represent whips at some Seders |
| 36% | PLUSMINUS | 9 | Hybrid symbol used to express margin of error |
| 34% | STAR | 4 | Symbol used by the answers to the asterisked clues |
| 34% | KEYBOARD | 8 | Device used to type letters and symbols |
| 33% | FLAG | 4 | Nation's "waving" symbol ... and a word used with 23a to signify 50a |
| 32% | METONYM | 7 | Example or attribute of something used to represent the whole, as "sword" for "military power" |
| 32% | ICON | 4 | Pictorial image that is often used to represent the theme or meaning of an application |
| 31% | ONA | 3 | Dolphins use s___r to detect fish |
| 30% | MAP | 3 | Used to locate a pirate's treasure |
| 29% | EMOTICONSECONOMIST | 18 | Applicant must be able to explain finance using symbols like ;-) |
| 29% | SYMBOLISM | 9 | Use of white to represent purity, e.g. |
| 28% | SNAKEHIPS | 9 | Expression used to describe Mick Jagger's pelvis |