The best replacement for hey is hi.

The best alternatives to hey are rated as following:
★★★★★  hi
★★★  hay
★  heyy
★  heyyy
★  hello
★  remember my name
★  straw
  eh
  hi 5sos
  hey hey my my
  hey
  what the hay

Your alternative for hey is not listed? Suggest!
Speaking about hey, one probably shouldn't forget about more than one y.

Other search terms related to hey and their ratings are:
★★★★★ more than one y
You have in mind a companion for hey and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of hey in all years. Click on graph for more.
hey
hi
hay