in·vade 
/ɪnˈveɪd/ verb
in·vades; in·vad·ed; in·vad·ing /ɪnˈveɪd/ verb 1 : to enter (a place, such as a foreign country) in order to take control by military force [+ obj] ▪ invade a country [no obj] ▪ The troops invaded at dawn. 2 a : to enter (a place) in large numbers [+ obj] ▪ Ants invaded the kitchen. ▪ Tourists invaded the town. [no obj] ▪ When tourists invade, the town is a very different place.
b [+ obj] : to enter or be in (a place where you are not wanted)
▪ She was invading my space. [=she was too close to me; she was in the place/space where I was or where I wanted to be] 3 : to spread over or into (something) in a harmful way [+ obj] ▪ The cancer eventually invaded the brain. ▪ Weeds had invaded the garden. ▪ Doubts invaded my mind. [=I began to have many doubts] [no obj] ▪ Bacteria invaded and caused an infection. 4 [+ obj] : to affect (something, such as your life or privacy) in an unwanted way
▪ He thinks people were happier before TV and the Internet invaded our lives. ▪ Photographers invaded her privacy. [=caused her to lose her privacy; intruded on her privacy]
b [+ obj] : to enter or be in (a place where you are not wanted)
▪ She was invading my space. [=she was too close to me; she was in the place/space where I was or where I wanted to be]
▪ He thinks people were happier before TV and the Internet invaded our lives. ▪ Photographers invaded her privacy. [=caused her to lose her privacy; intruded on her privacy]
— in·vad·er noun, plural in·vad·ers [count]
▪ The city was attacked by invaders from the north.
▪ The city was attacked by invaders from the north.
