bear down
Verb
Meaning
contract the abdominal muscles during childbirth to ease delivery
exert a force or cause a strain upon
pay special attention to
exert full strength
to make a rush at or sudden attack upon, as in battle
exert a force with a heavy weight
Source: WordNetSynonyms
Antonyms
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Examples
In my case, using what politely might be called "advocacy journalism," I've used reporting as a weapon to affect political situations that bear down on my environment.
This tax bears down on the lower middle class
The lectures bore down on the political background
The pitcher bore down
he saw Jess charging at him with a pitchfork
The snow bore down on the roof