Synonyms for Howdy:

interj.

hello (interjection)
good morning, Hey, good day, hiya.

n.

hiya, all-right, pleased to meet you, good afternoon, good morning, Hey, good day, good evening. greeting (noun)
hello, how-do-you-do, hi.
howdy (noun)
hi, how-do-you-do, hello, hullo.

Other synonyms:

HI
hi.

Usage examples for howdy

  1. Fan received the people at the door of the shack- her mother being too busy in the preparation for dinner to do more than say " Howdy – They of the High Trails by Hamlin Garland
  2. " Howdy Abe," he said. – Abe Lincoln Gets His Chance by Frances Cavanah