tack

(countable) A tack is a small, sharp nail with a large flat head.
He needed a tack to hold the carpet edge down.
A tack is the direction of a boat sailing against the wind.
The boat sailed across the bay on a southerly tack.
A tack is a course or direction to follow.
Our ideas caused so much anger we were forced to change tack.
Tack is items that are used for horse riding.
The saddles were kept in the tack room.

Plain form
tack

Third-person singular
tacks

Past tense
tacked

Past participle
tacked

Present participle
tacking

To tack is to use small nails to hold something.
She had to tack the new rules on the notice board.
To tack is to put something together.
We might be able to tack together a few ideas.
To tack is to sew something together with large loose stitches.
The tailor quickly began to tack the hem of her dress.
To tack is to sail a zigzag course against the wind.
We had to tack our way along the coast.

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Noun