- 3. Knowledge, experience, note.
- 4. Remark, comment.
- 5. Observance.
Observe, v. a.
- 1. Notice, remark, note, watch, eye, mark, take note of, pay attention to.
- 2. See, behold, notice, perceive, detect, discover.
- 3. Utter, express, remark, mention, say.
- 4. Fulfil, obey, follow, comply with, conform to, adhere to, be faithful to.
- 5. Celebrate, regard, keep, solemnize.
Observe, v. n.
- 1. Take notice, attend.
- 2. Make a remark, comment.
Observer, n.
- 1. Beholder, spectator, bystander, on-looker, looker-on.
- 2. Regarder, keeper.
- 3. Student, examiner, watcher.
- 4. Fulfiller, performer, keeper.
Obsolete, a. Antiquated, disused, neglected, unfashionable, old-fashioned, out of date, fallen into desuetude, ancient, antique, old, archaic, past.
Obstacle, n. Hindrance, obstruction, impediment, difficulty, check, barrier, stumbling-block.
Obstetrician, n. Midwife, accoucheur.
Obstetrics, n. pl. Midwifery, tocology.