Definition of “mix” - Learner’s Dictionary

mix

verb us uk /mɪks/
The truck mixes the concrete as it carries it to the building site.Mix the ingredients to form a dough.The fuel mixes with air before in enters the cylinder.The pigments are mixed with water to create different colours.The sauce is made by mixing butter and white wine.
COMBINE SUBSTANCES [ I, T ]

A2 If two or more substances mix, they combine to make one substance, and if you mix two or more substances, you combine them to make one substance:

Mix / the powder with water to form a paste.
Put the chocolate, butter, and egg in a bowl and mix / them all together.
Oil and water don't mix.
COMBINE QUALITIES ETC [ I, T ]

B1 to have or do two or more things, such as qualities, styles, activities, etc, at the same time:

a feeling of anger mixed with sadness
MEET [ I ]

B2 to meet and talk to people:

She enjoys going to parties and mixing with people.

(Definition of “mix verb” from the Cambridge Learner's Dictionary © Cambridge University Press)