Inference
Infer, Sense
noun, する verb
Okay, so you guess but you also kind of know. You can make an inference as to what the answer is... You're not 100% sure, but you think you know, even though you're guessing.
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. Note that 察 gets shortened to さっ.
昨夜、ビエトがコンピューターの不正利用を察知しました。
Last night, Viet detected unauthorized use of the computers.
ビエトと手下たちは、警察の手入れがあることを事前に察知していたようだ。
Viet and his foot soldiers seemed to have sensed that the police would raid them.
僕達の赤ちゃんは、母親であるサーモンの感情や不安をすごく敏感に察知するんです。
Our baby is very sensitive to the emotions and anxieties of his mom, Salmon.