blend in

verb

blended in; blending in; blends in

1

: to look like things nearby

The fish settles on the sandy ocean bottom where it blends in perfectly.

2

: to look like one belongs with a particular group

She tried to blend in by dressing like the other girls.

—often + with

I've always found it difficult to blend in with my peers.

3

: to add (something) to a mixture or substance and mix it thoroughly

Mix the first three ingredients together, then blend in the cream.

Blend the white paint in last.