used to
used to (1) {adj. phr.}
In the habit of or familiar with.
People get used to smoking and it is hard for them to stop.
Farmers are used to working outdoors in the winter.
After my eyes became used to the dim light in the cave, I saw an old shovel on the ground.
On the hike Bob soon got tired, but Dick did not because he was used to walking.
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Source: A Dictionary of American Idioms