rec.¹

• abbr.
  • receipt
  • received
  • recipe
  • record
  • recorded
  • recorder
  • recording
  • recreation

rec.²

• abbr.recens. [拉丁语]新鲜的

rec[rek]

• n.[口语] recreation的缩略形式[用于构成复合词,如rec hall,rec room等]