The best replacement for birthday is anniversary.

The best alternatives to birthday are rated as following:
★★★★★  anniversary
★★★★  birth date
★★★★  birthdate
★★★  birthday
★★  belated happy birthday
★★  happy belated birthday
★★  advanced happy birthday
★  presidents day
★  advance happy birthday
★  debut
★  bornday
★  happy birthday
★  birth anniversary
★  dinner for one
★  born day
  name day
  chinese birthday
  american birthday
  l
  date of birth

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

Other search terms related to birthday and their ratings are:
★★★★★ family
★★ bucky
★ new year wishes
★ saying happy birthday
social security number
You have in mind a companion for birthday and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of birthday in all years. Click on graph for more.
birthday
anniversary
birth date