Observe
Perceive
Synonyms Notice, note, discern, spot, discover, make out, descry, see, perceive, remark, detect, distinguish, espy, and behold.
Contemplate
Synonyms Watch, look at, contemplate, survey, witness, scrutinize, keep watch on, monitor, watch like a hawk, spy on, reconnoitre, keep tabs on, case, clock, eyeball, surveil, see, eye, view, regard, keep an eye on, keep under observation, keep under surveillance, keep under scrutiny, keep a weather eye on, check out, get a load of, keep a tab on, keep a beady eye on, recce, and twig.
Mention
Synonyms Comment, say, note, announce, utter, interpose, opine, remark, mention, declare, state, pronounce, and interject.
Keep
Synonyms Comply with, keep, adhere to, heed, respect, pay attention to, acquiesce in, accept, fulfil, abide by, obey, conform to, honour, be heedful of, follow, consent to, defer to, and stand by.
Celebrate
Example Sentences
We observe the stars nightly.
She likes to observe wildlife quietly.
They observe traditions every year.
He paused to observe the situation.