To take in and understand fully (information or ideas). She was able to assimilate all the new information quickly.
To absorb and integrate into a wider society or culture. Immigrants often find it challenging to assimilate into a new culture.
To absorb and digest (food or nutrients) in the body. The body needs time to assimilate the nutrients from the food.
To cause (a speech sound) to become similar to or identical with a neighboring sound. In the prefix "in-", the nasal consonant assimilates to /m/ before a labial consonant, as in "impossible".
To make or become alike; to cause something to resemble something else. The architect tried to assimilate the new extension to the style of the original building.