Definition of notice verb from the Oxford Advanced American Dictionary

     

    notice

     verb
    verb
    NAmE//ˈnoʊt̮əs//
     
    Verb Forms present simple I / you / we / they notice
     
    he / she / it notices
     
    past simple noticed
     
    -ing form noticing
     
     
    jump to other results
  1. 1(not usually used in the progressive tenses)
  2. see/hear
  3. 2[intransitive, transitive] to see or hear someone or something; to become aware of someone or something People were making fun of him but he didn't seem to notice. notice somebody/something The first thing I noticed about the room was the smell. notice (that)… Icouldn't help noticing(that) she was wearing a wig. notice how, what, etc… Did you notice how Rachel kept looking at her watch? notice somebody/something do something I noticed them come in. notice somebody/something doing something I didn't notice him leaving.
  4. pay attention
  5. 3 [transitive] notice somebody/something to pay attention to someone or something She wears those strange clothes just to get herself noticed.
  6. Thesaurusnoticenote detect observe witnessThese words all mean to see something, especially when you pay careful attention to it.notice to see, hear, or become aware of someone or something; to pay attention to someone or something:The first thing I noticed about the room was the smell.note (somewhat formal) to notice or pay careful attention to something:Please note (that) the office will be closed on Monday. This word is very common in business English:Note that the prices do not include sales tax.detect to discover or notice something, especially something that is not easy to see, hear, etc.:The tests are designed to detect the disease early.observe (formal) to see or notice someone or something:Let me know if you observe any changes in his behavior. The police observed a van leaving the parking lot.witness (somewhat formal) to see something happen:Police have asked anyone who witnessed the robbery to contact them.Patterns to notice/note/detect/observe that/how/what/where/who… to notice/observe/witness something happen/somebody do something
See the Oxford Advanced Learner's Dictionary entry: notice