The best replacement for hat is cap.

The best alternatives to hat are rated as following:
★★★★★  cap
★★★  no hat
★★★  suse
★★  black hat
★★  ubuntu
★  fedora
★  white hat
★  barnaby
★  fascinator
★  hit
★  toque
  white hat hackers
  crossbreed
  pro hat
  suse linux
  grinch
  sled
  helmet
  felt hat
  bump cap
  mandrake
  black hat hackers
  unstructured hat
  visor
  hood
  bowler
  p
  novell
  black hat seo
  bandana
  hat
  high crown
  red hat
  beanie
  bowler hat
  centos
  eps

Your alternative for hat is not listed? Suggest!
Speaking about hat, one probably shouldn't forget about beard.

Other search terms related to hat and their ratings are:
★★★★★ beard
★★★★ brim
★★ scarf attached
★★ seam
★ hat
★ mosquito netting
★ fake hair
You have in mind a companion for hat and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of hat in all years. Click on graph for more.
hat
cap
no hat