Thesaurus.com
synonyms
  • definitions

be onto someone

  • as in
Relevance ranks synonyms and suggests the best matches based on how closely a synonym’s sense matches the sense you selected.
Relevance
A-Z
Length
-
+

Synonyms for be onto someone

verb know someone's motives
  • be onto someone
  • be wise to someone
  • have someone pegged
  • have someone sized up
  • know what makes someone tick
  • read someone

More words related to be onto someone

have someone's number

verb. know someone's motives
  • be onto someone
  • be wise to someone
  • have someone pegged
  • have someone sized up
  • know what makes someone tick
  • read someone
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
.