Retire from and Throw in the towel

Retire from verb - To give up (a job or office).

Throw in the towel and retire from are semantically related. In some cases you can use "Throw in the towel" instead a verb "Retire from".

Throw in the towel verb - Give up in the face of defeat of lacking hope; admit defeat.

Retire from and throw in the towel are semantically related. Sometimes you can use "Retire from" instead a verb phrase "Throw in the towel".