adjective

1. right or fair; equitable; impartial a just decision
2. righteous; upright a just man
3. deserved; merited just praise
4. legally right; lawful; rightful
5. proper, fitting, etc. a just balance of colors
6. well-founded; reasonable a just suspicion
7. correct or true a just report
8. accurate; exact a just measure

Etymology: ME < OFr juste < L justus, lawful, rightful, proper < jus, right, law: see jury

adverb

1. neither more nor less than; precisely; exactly just one o'clock
2. almost at the point of; nearly just preparing to leave
3. no more than; only just a taste, just teasing you
4. by a very small amount; barely to just miss a train
5. a very short time ago she has just left
6. immediately just east of the church
7. Informal quite; really to feel just fine