To Attach Something, To Attach
transitive verb, ichidan verb
This word consists of kanji with hiragana attached. Because the hiragana ends with an う sound, you know this word is a verb. The kanji itself means attach so the verb version is to attach something.
つける
The reading is actually the same as the one you learned with the kanji, meaning you should be able to read this one just fine.
ホットドッグにケチャップ付ける？
Do you want to put ketchup on your hotdog?
お母さんは手首に金のブレスレットを付けていました。
My mother had a gold bracelet on her wrist.
コウイチは、犬に「ニッカ」という名を付けました。
Koichi named the dog "Nikka."