sig

abbreviation (1)

Definition of sig

 (Entry 1 of 3)

signature

Sig

abbreviation (2)

Definition of Sig (Entry 2 of 3)

signa

SIG

abbreviation (3)

Definition of SIG (Entry 3 of 3)

special interest group

Keep scrolling for more

More Definitions for sig

Medical Definition of Sig

signa used to introduce the signature in writing a prescription

More from Merriam-Webster on sig

Britannica.com: Encyclopedia article about sig

Comments on sig

What made you want to look up sig? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to make a payment or contribution

Get Word of the Day daily email!

Test Your Vocabulary

Time Traveler Quiz: Which Word Came First?

  • time traveler quiz which word came first
  • Which came first?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!