(しわ)

しわ
noun
wrinkle
1. wrinkle (on skin or fabric)
A line or crease on skin caused by aging, or a crease in fabric or paper.
There are wrinkles on the face.
I iron out the wrinkles in my shirt.
Wrinkles appear on the face as you age.
I'm concerned about the wrinkles at the corners of my eyes.
The clothes I had put in my suitcase got wrinkled, so I ironed them.

(しわ) refers to wrinkles on skin (from aging or expression) and creases in fabric or paper. Often written in hiragana (しわ) in casual contexts.

SKIN WRINKLE COLLOCATIONS:

FABRIC CREASE COLLOCATIONS:

IDIOM:
皺寄(しわよ)せ means 'passing the burden onto someone else' — the negative consequences are 'pushed' like wrinkles being gathered to one spot.