second-person singular simple present of be / first-person plural simple present of be / second-person plural simple present of be / third-person plural simple present of be

(rare) An accepted (but deprecated and rarely used) SI unit of area equal to 100 square metres, or a former unit of approximately the same extent. Symbol: a.

(UK, US) Misspelling of our. / (UK, US, humorous, derogatory) Deliberate misspelling of our.

(mathematics) A measure of the extent of a surface; it is measured in square units. / A particular geographic region. / Any particular extent of surface, especially an empty or unused extent.

are not (negative auxiliary)

(colloquial) A contraction of “am not”, used e.g. in the construction "aren’t I?"

(idiomatic) An informal greeting, not requiring a literal response. In form a question, and thus followed by a question mark. Typical responses include:

Of or pertaining to an area.

(Greek mythology) The god of war, son of Zeus and Hera, brother Hephaestus, sister Eris, who is his companion. Attended by his sons, (to Aphrodite), Deimos and Phobos, and old war-goddess Enyo.

(idiomatic) Some period of time, such as a term of employment or a lifetime, is coming to an end.