(broadcasting) The time of day when a radio or television station begins broadcasting, usually after being off the air for several hours. / Alternative form of sign-on

To join something, after signing. / To commit oneself, as to a project, a goal, an organization, a cause.

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.

plural of at-sign

Alternative form of cosign

simple past tense and past participle of co-sign

plural of sign-post

plural of day sign

Alternative spelling of signpost

present participle of co-sign