blend inphrasal verb
Definition of blend 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.