What is the meaning of the word "tack"?

Definitions:

A loose or temporary stitch to hold fabric in place. NOUN
- She used a tack stitch to position the hem before final sewing.
A method or approach to dealing with a situation. NOUN
- Let's try a different tack to solve this problem.
A short, sharp nail or pin, used in furniture, posters, fabric, etc. NOUN
- He secured the map to the wall with a tack.
The direction a sailing boat takes relative to a wind, or the lower forward corner of a sail. NOUN
- The sailor changed tack to head into the harbor.
To attach or include something additionally. VERB
- They tacked on a service fee at the end.
To temporarily attach or fix something, often with a pin, stitch, or nail. VERB
- He tacked the notice to the board.
To turn a boat so the bow passes through the wind. VERB
- We had to tack several times to reach the cove.