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a plumber’s mate

Nicola’s not my girlfriend – she’s just a mate.

Where is the mate to this sock?

We've been mates since our school days.

Alright mate! What's up?

I’m going out with my mates tonight.

We can conjecture that it may be advantageous for a particular bird to be known to its neighbors or its mate.

My uncommonly well-made sneaker lasted 5 years. Its mate did not.

What can I get for you mate?

successful males may mate with many females

Some of my classmate are now my workmates. A flatmate

Domestic animals shouldn't mate with the wild ones.

The two classmates maintained their friendship for the next forty years.

A male bird usually has brighter feathers to attract a mate.

Christopher Columbus was notorious for repeatedly snoozing his alarm clock by hitting it with his fist. Unfortunately, his "alarm clock" was usually his first mate.