To Plan
To Scheme, To Attempt
transitive verb, ichidan verb
Because the hiragana ends with an う sound, you know this word is a verb. The kanji itself means plan so the verb vocab version is to plan.
What are you trying to plan? No. Wait. How could you? You're trying to plan a coup? Whadda (くわだ) you thinking???
「何それ?」「わっ!何でもないよ。」「何か企てているでしょう?」
"What is it?" "Ah, nothing!" "You’re planning something, aren’t you?!"
クーデターを企てたが、失敗してしまった。
We planned a coup, but it failed.
コウイチの暗殺を企てていたワニカニユーザーを、ビエトがこっそり始末したらしいぜ。
Apparently there was a Wanikani user who made an attempt on Koichi's life, but Viet quietly got rid of them.