sign in

verb

signed in; signing in; signs in

intransitive verb

: to make a record of arrival by signing a register or punching a time clock

transitive verb

: to record arrival of (a person) or receipt of (an article) by signing

Word History

First Known Use

1903, in the meaning defined at intransitive sense

Time Traveler
The first known use of sign in was in 1903

Dictionary Entries Near sign in

Cite this Entry

“Sign in.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sign%20in. Accessed 24 Jun. 2024.

Kids Definition

sign in

verb
: to make a record of one's arrival or presence
use a password to sign in on the computer

More from Merriam-Webster on sign in

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