Ref. book
The crossword clue "Ref. book" is answered by ENC, a 3-letter entry. Used 39 times across 26 distinct years; most recently in 2025; first recorded in 1967. It appears in 8 publications in the xd corpus. Every figure on this page comes from the collection data itself.
The answer
ENC
3 letters. See every clue for this answer on the ENC answer page.
Used 39 times across 26 distinct years; most recently in 2025; first recorded in 1967. It appears in 8 publications in the xd corpus. Frequency and last-seen figures come from the xd crossword corpus only.
Other answers for this clue
The same clue has also been answered these ways in the xd corpus. Answers inside this collection link to their own answer page.
- DICT (20 uses in xd)
- ENCY (7 uses in xd)
- GAZ (2 uses in xd)
Other clues for ENC
Every other clue in this collection answered by ENC, most used first.
- SASE, e.g. - used 92 times, most recently in 2026
- Business letter abbr. - used 45 times, most recently in 2025
- Env. insert - used 25 times, most recently in 2024
Related clues
Clues in this collection of the same answer length that share a word with this clue, or match its answer pattern when no word is shared. Most used first.
- "Guinness Book" suffix - EST, used 99 times
- British ref. work - OED, used 92 times
- Frank McCourt book - TIS, used 48 times
- Ref - UMP, used 48 times
- O.T. book - NEH, used 38 times
- "Little Red Book" author - MAO, used 34 times
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