4-letter words containing a, c
- trac — Text Reckoning And Compiling
- ucas — Universities and Colleges Admissions Service
- ucca — Universities Central Council on Admissions
- voca — Voice Output Communication Aid
- waac — U.S. Military. Women's Army Auxiliary Corps: founded during World War II. a member of the Women's Army Auxiliary Corps. Compare Wac.
- waca — Western Australian Cricket Association
- wace — Robert [rob-ert;; French raw-ber] /ˈrɒb ərt;; French rɔˈbɛr/ (Show IPA), ("Wace of Jersey") c1100–c1180, Anglo-Norman poet born on the Channel Island of Jersey.
- wach — Western Athletic Conference Hockey
- wack — wacko.
- waco — a city in central Texas, on the Brazos River.
- wacu — Wasserski Akrobatik Club Untersee
- wcaf — World Combat Arts Federation
- wcja — World Championship Jousting Association
- wfca — Wisconsin Football Coaches Association
- wrac — Women's Royal Army Corps
- wuac — World University Archery Championship
- wzca — West Zone Cricket Academy
- yack — to talk, especially uninterruptedly and idly; gab; chatter: They've been yakking on the phone for over an hour.
- ymca — The YMCA is a place where men can stay cheaply, which is run by the YMCA organization. YMCA is an abbreviation for 'Young Men's Christian Association'.
- yuca — cassava.
- ywca — The YWCA is a place where women can stay cheaply, which is run by the YWCA organization. YWCA is an abbreviation for 'Young Women's Christian Association'.
- zach — a male given name, form of Zachary or Zachariah.
- zack — (Australia, obsolete) Sixpence.