I am five years old.
I'll turn 67 on the 2nd of the next month.
On my dad’s fifty-fifth birthday, I was invited to Hogwarts School of Witchcraft and Wizardry.
Although this word consists of one kanji that is all alone, it doesn't share its meaning with the parent kanji. The meanings are similar in a way, though. This word means years old or age. With more years comes more genius, right? That's why this word means "years old" and not "genius," like the parent kanji.
Hint: Stick this word onto numbers to say how old someone is!
The reading is the same as the one you learned for the kanji, meaning you should already know it! Don't try to type the 〜 part though.