5-letter words containing fa
- rtfaq — (Usenet, primarily written, by analogy with RTFM) Read the FAQ! An exhortation that the person addressed ought to read the newsgroup's FAQ list before posting questions.
- safar — the second month of the Muslim calendar.
- sofar — a system for determining a position at sea by exploding a charge under water and measuring the time the shock waves take to reach three widely separated shore stations at known distances from each other.
- sulfa — related chemically to sulfanilamide.