To Handle, To Treat
transitive verb, godan verb
Because the hiragana ends with an う sound, you know this word is a verb. The kanji itself means handle so the verb vocab version is to handle.
あつかう
The reading is the one you learned with the kanji, actually! Can you handle that?
夫の連れ子にまるで他人の用に扱われて、すごくストレスが溜まります。
My step child treats me like I’m a stranger and it really stresses me out.