Entry 2 senses · 2 variants Webster, 1913 Leaser /lēs'-ẽr/ · Leas·er · IPA /ˈliːsə/ n. n. 01 n. One who leases or gleans. 1. One who leases or gleans.[Obs.] 02 n. A liar. 1. A liar.[Obs.]