present participle of sign in

Third-person singular simple present indicative form of sign in

Third-person singular simple present indicative form of sign on

present participle of sign on

simple past tense and past participle of sign in

simple past tense and past participle of sign on

The symbol @, most commonly used in e-mail addresses.

(sometimes also used uncountably) A perceptible (e.g. visible) indication. / (Canada, US, Australia, uncountable) Physical evidence left by an animal.

(transitive, now rare) To seal (a document etc.) with an identifying seal or symbol. / (transitive) To mark, to put or leave a mark on.

plural of sign