To Imagine
する verb, transitive verb
To imagine some sort of an image in your mind simply means to imagine.
そうぞうする
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
ゲ、想像するのもヤダ!
Ugh, I don't even want to imagine!
そのシーンを想像してみてください。
Please try to imagine that scene.
コウイチは仕事中、たまに想像できないような動きをする。
Every once in a while Koichi will move in an unimaginable way while he's working.