The username and password for logging in to a computer account. / An attempt to log in. / (more generally) An instance of signing on to something. / A person who signs on to something.

Alternative form of at sign

plural of at sign

plural of signing

simple past tense and past participle of sign up

simple past tense and past participle of sign out

(computing) The convention by which one bit in the representation of a number indicates the numeric sign, while the rest indicate the magnitude.

simple past tense and past participle of sign off

simple past tense and past participle of re-sign

(computing, cryptography) Of a security certificate: signed by the same entity whose identity it certifies; signed with its own private key.