reminder

UK: /rɪˈmaɪndə^r/ US: (ri mīn′dər)

WordReference Random House Unabridged Dictionary of American English © 2025

re•mind•er  (ri mīn′dər), n. 

1. a person or thing that serves to remind.

• remind + -er¹ 1645–55

Collins Concise English Dictionary © HarperCollins Publishers::

reminder / rɪˈmaɪndə/ noun

1. something that recalls the past
2. a note to remind a person of something not done

WordReference Random House Learner's Dictionary of American English © 2025

re•mind /rɪˈmaɪnd/   v. 

1. to cause (a person) to remember: [~ + object]
   If you remind me, I might remember.
   [~ + object + to + verb]
   Remind me to call home.
   [~ + object + of + object]
   I'll remind you of that.
   [~ + object + (that) clause]
   Must I remind you that we have no money left?
2. to cause (a person) to think (of someone or something):
   [~ + object + of + object] She reminds me of my mother.

re•mind•er, n. [countable]  See -mem-.

WordReference Random House Unabridged Dictionary of American English © 2025

re•mind  (ri mīnd′), v.t. 

1. to cause (a person) to remember;
   cause (a person) to think (of someone or something):
   Remind me to phone him tomorrow. That woman reminds me of my mother.

• re- + mind 1635–45