Synonyms of 'observe'
- see, detect, discern, discover, note, notice, perceive, spot, witness
- watch, check, keep an eye on (informal), keep track of, look at, monitor, scrutinize, study, survey, view
- remark, comment, mention, note, opine, say, state
- honor, abide by, adhere to, comply, conform to, follow, heed, keep, obey, respect
Thesaurus for observe from the Collins American English Thesaurus
If you observe a person or thing, you watch them carefully, especially in order to learn something about them.