To Memorize
する verb, transitive verb
Hopefully you've seen 暗記 before now. It means "memorization." So, turn that into a verb and you have to memorize.
あんきする
The reading comes from 暗記. It also is the reading you learned with the kanji too.
え、これ全部暗記するの?
Oh, do you have to memorize all of this?
ワニカニを使えば、日本語の単語を楽に暗記することができます。
By using WaniKani, you can easily memorize Japanese vocabulary.
明日までに、台本のセリフを暗記しなければいけないんです。
I have to memorize my lines from the script by tomorrow.