Use tannin extract, fish oil, chemicals, etc. Soften hides and make leather.

English: Tan

Explain in detail:

transitive verb

1. Tanning (leather) and salting (leather)

sunburn

Sunlight and wind tanned the sailor's face.

The sun and wind tanned the sailor's face.

Whip your mouth

intransitive verb

1. tanning

My brother gets a quick tan.

My brother gets black as soon as he gets sunburned.

Noun (short for noun)

1. tannic acid

2. Brown; Suntanned skin

His arms and legs are tanned.

His arms and legs were tanned.

3. Brown shoes [P]

4. circus

a.

1. Tanning

2. brown

I bought a pair of brown leather shoes the other day.

I bought a pair of brown leather shoes the other day.