caulk
1. [ verb ] seal with caulking
Synonyms: calk
Examples:

"caulk the window"

Related terms: seal
Similar spelling:   calk
  calx
  calyx
  Cales
  calque
  callus
  Callis
  Calles
  callas
  Calise
  calico
  calash
  calais
  callous
  Callejo
  caliche
  caleche