D defs.my
Entry 5 senses · 4 variants Webster, 1913

Commonplace

/käm'-ən-plāsˌ/ · Com·mon·place · IPA /ˈkɑmənˌpleɪs/
01 a. Common; ordinary; trite; as, a commonplace person, or observation.
  1. 1.
    Common; ordinary; trite; as, a commonplace person, or observation.
02 n. An idea or expression wanting originality or interest; a trite or customary remark; a platitude.
  1. 1.
    An idea or expression wanting originality or interest; a trite or customary remark; a platitude.
  2. 2.
    A memorandum; something to be frequently consulted or referred to.
    “Whatever, in my reading, occurs concerning this our fellow creature, I do never fail to set it down by way of commonplace.” Swift.
Phrases & compounds
Commonplace book — a book in which records are made of things to be remembered.
03 v. t. To enter in a commonplace book, or to reduce to general heads.
  1. 1.
    To enter in a commonplace book, or to reduce to general heads.
04 v. i. To utter commonplaces; to indulge in platitudes.
  1. 1.
    To utter commonplaces; to indulge in platitudes.[Obs.]