infiltration
word
Definition
The act of entering or passing into a place or group secretly and gradually, especially to gain information or an advantage. Also used in science to describe liquids passing slowly into something.
Usage & Nuances
Often formal or technical, common in military, espionage, or science contexts (like 'water infiltration'). Not used for people simply joining a group; implies secrecy or slow, subtle entry.
Example Sentences
The army stopped the enemy's infiltration into the city.
basic
Scientists measured the infiltration of water into the soil.
basic
The company fears infiltration by hackers.
basic
There was slow infiltration of rainwater into the basement after the storm.
natural
The spy's infiltration went unnoticed for months.
natural
We're checking the network for any signs of infiltration.
natural