1.
to push into
To forcefully push something or someone into a space.
荷物を無理やり押し入れた。
I forcibly pushed the luggage in.
2.
to break into, to force one's way in
To enter a place by force, especially illegally.
強盗が家に押し入れた。
Robbers broke into the house.
群衆が建物に押し入れた。
The crowd forced their way into the building.
COMPOUND VERB:
Formed from 押す (to push) + 入れる (to put in). Indicates forceful entry or insertion.
TRANSITIVITY:
他動詞 (transitive verb) for sense 1
自動詞 (intransitive verb) for sense 2 (person as subject)
NOTE:
Do not confuse with 押し入れ (おしいれ), which means "closet" (noun).