Nouns

(n)noticean announcement containing information about an event“you didn't give me enough notice”, “an obituary notice”, “a notice of sale”
(n)notice, observation, observancethe act of noticing or paying attention“he escaped the notice of the police”
(n)notification, noticea request for payment“the notification stated the grace period and the penalties for defaulting”
(n)noticeadvance notification (usually written) of the intention to withdraw from an arrangement of contract“we received a notice to vacate the premises”, “he gave notice two months before he moved”
(n)poster, posting, placard, notice, bill, carda sign posted in a public place as an advertisement“a poster advertised the coming attractions”
(n)noticepolite or favorable attention“his hard work soon attracted the teacher's notice”
(n)noticea short critical review“the play received good notices”

Verbs

(v)detect, observe, find, discover, noticediscover or determine the existence, presence, or fact of by perception with the eyes“She detected high levels of lead in her drinking water”, “We found traces of lead in the paint”
(v)notice, mark, notenotice or perceive“She noted that someone was following her”, “mark my words”
(v)comment, notice, remark, point outmake or write a comment on“he commented the paper of his colleague”
(v)notice, acknowledgeexpress recognition of the presence or existence of, or acquaintance with“He never acknowledges his colleagues when they run into him in the hallway”, “She acknowledged his compliment with a smile”, “it is important to acknowledge the work of others in one's own writing”