| 100% | EAD | 3 | Abbr. used in citations that means "the same woman" |
| 54% | VENIR | 5 | Verb that means the same thing in Spanish and French |
| 51% | IBID | 4 | Footnote abbr. that means "in the same place" |
| 47% | OPS | 3 | Suffix used in taxonomy when naming species that means "face", from the ancient Greek |
| 47% | INST | 4 | Abbr., now used infrequently, meaning "of the current month" in formal communication |
| 47% | MAJ | 3 | A rank in the army that also means "huge": Abbr. |
| 47% | DNA | 3 | Genetic material that's the same in identical twins: Abbr. |
| 46% | SYNONYM | 7 | Word that means the same as another |
| 46% | YEA | 3 | Vote that means the same as "aye" |
| 46% | AYE | 3 | Vote that means the same as "yea" |
| 45% | SYNONYM | 7 | Word that means the same as another word |
| 45% | PRE | 3 | Prefix that means the same thing as "ante-" |
| 45% | SYNONYMS | 8 | Two different words that mean the same thing |
| 45% | YEA | 3 | Anagram of 21-Across that means the same thing |
| 45% | ADIEU | 5 | French word that means the same as "au revoir" |
| 44% | DAD | 3 | Word that means the same thing as "Pa" or "Pops" |
| 44% | ORSO | 4 | Phrase that means the same thing as "-ish": 2 wds. |
| 44% | MAILBOX | 7 | Word that means the same thing even with several letters added? |
| 43% | IDEM | 4 | The same, in legal citations |
| 43% | XXXX | 4 | Abbr. used in academic citations |
| 43% | IBID | 4 | The same, in a footnote: Abbr. |
| 43% | YEA | 3 | Word that means the same thing, and has the same letters as, "aye" |
| 43% | SEMI | 4 | Prefix that means the same thing as, and rhymes with, "hemi-" and "demi-" |
| 42% | GOOGLE | 6 | Word meaning "look up on a search engine" that was first used on TV in "Buffy the Vampire Slayer" |
| 41% | IDEM | 4 | Latin for the same, used in referencing |
| 41% | JUSTAS | 6 | In the same way that |
| 40% | OHO | 3 | Cry that means much the same as "Aha!" |
| 40% | SWEETIE | 7 | Term that means much the same as "honeybunch" |
| 40% | DELMAR | 6 | Surname that means “of the sea” in Spanish |
| 40% | PCBS | 4 | Chemicals used in the manufacture of plastics: Abbr. |