| 100% | FLUENCY | 7 | Ability to speak and understand a foreign language |
| 58% | FLUENCY | 7 | The ability to accurately speak a foreign language |
| 47% | FLUENT | 6 | Able to speak a foreign language like a native |
| 45% | FAUXAMIS | 8 | Words in a foreign language that bear a deceptive resemblance to those in another, like the French "décevoir" ("disappoint") and the English "deceive" |
| 42% | EMPATHY | 7 | Ability to understand and share others' feelings |
| 41% | FLUENT | 6 | Able to speak easily, as a language |
| 39% | FLUENT | 6 | Person who speaks a foreign language perfectly |
| 37% | ORAL | 4 | Spoken exam, as in a foreign language class |
| 37% | VOICE | 5 | Ability to speak |
| 37% | GIFTOFGAB | 9 | Ability to speak persuasively |
| 36% | NOSEEUMS | 8 | Minuscule biters, and a clue to understanding 15-, 26- and 43-Across |
| 36% | ARIA | 4 | Song that's often in a foreign language |
| 35% | CODESWITCHING | 13 | Speaking Spanglish, say ... or a hint to what's hidden in 20-, 28- and 48-Across |
| 34% | IDIOM | 5 | Challenge for a foreign language learner |
| 34% | EAR | 3 | Ability to understand sound |
| 34% | EXAM | 4 | Oral ___ (test for a foreign language student) |
| 34% | VOLARE | 6 | 1958 #1 hit in a foreign language |
| 34% | VERBALGYMNASTICS | 16 | Fancy, evasive language ... or a hint to the ends of 18-, 26-, 54- and 65-Across |
| 33% | DISAPPEARINGACT | 15 | Part of a magic show, and the key to understanding this puzzle's one-word clues |
| 33% | LITERACY | 8 | Ability to read and write |
| 33% | BILINGUAL | 9 | To speak two languages fluently |
| 33% | AIM | 3 | Ability to hit a target |
| 33% | SKILL | 5 | Ability to perform a task |
| 33% | HOLLOWLEG | 9 | Ability to drink a lot |
| 33% | OFGAB | 5 | Gift ___, the ability to speak well: 2 wds. |
| 33% | APHASIA | 7 | Medical term for loss of ability to speak |
| 33% | SKIPPER | 7 | Ship's captain, informally, and a hint to help you to understand five answers in this puzzle |
| 33% | BRAINPLASTICITY | 15 | Ability to learn and adapt neurologically |
| 33% | AGILITY | 7 | Ability to move quickly and easily |
| 33% | GAYDAR | 6 | Ability to sense a particular orientation |