reminder noun
ADJ. powerful, strong | lasting, permanent | constant, continual, daily | further | graphic, sharp, stark, visual, vivid | chilling, grim, painful, uncomfortable | poignant, solemn | salutary | timely | important | gentle, little, quick | final It always took a final reminder to get her to pay her share of the rent. | useful The list serves as a useful reminder of the issues to consider.
VERB + REMINDER act/serve as, be, provide The ruined church acts as a constant reminder of the war. | give sb, issue, send (out) She gave him a gentle reminder that payment was due. | receive | need
REMINDER + NOUN letter, note, notice
PREP. ~ about We were sent a reminder about the next meeting. | ~ to a timely reminder to people that leaving their doors open is an invitation to thieves
You can also check other dicts: reminder (English, 中文解释 ), wordnet sense, Collins Definition