Entry 4 senses · 2 variants Webster, 1913 Four /(fōr)/ · IPA /[foː]/ a. n. 01 a. One more than three; twice two. 1. One more than three; twice two. 02 n. The sum of four units; four units or objects. 1. The sum of four units; four units or objects. 2. A symbol representing four units, as 4 or iv. 3. Four things of the same kind, esp. four horses; as, a chariot and four. Phrases & compounds All fours — See All fours, in the Vocabulary.