Head
noun
The kanji and the word are exactly the same. That means they share meanings as well.
頭 means head, but it can refer to lots of other related things by extension. For example, 頭がいい means you're smart (you've got a "good head") and 話の頭 means the beginning of a story (the part at "the head" of it). Just remember the "head" meaning, and you'll usually be able to guess the figurative meanings from context!
Since this word is made up of a single kanji, it should use the kun'yomi reading which you learned with the kanji earlier. No problem!
頭に入れる
to put into one's head, to keep in mind
頭にのせる
to put on top of one's head
頭に入る
to get into one's head
頭がくらくらする
to feel light in the head, to feel dizzy
頭が下がる
to be greatly impressed, to take one's hat off to
頭がいい
to be intelligent, to be smart
頭を下げる
to lower one's head, to bow
頭をなでる
to rub someone's head, to pet someone's head
頭をかかえる
to be at a wit's end
頭に何か糸のような物が付いてますよ。
You have what looks like a thread stuck to your head.
このアパートは高さがあまりないので、頭の上に気をつけてください。
This apartment has a low ceiling, so please watch your head.
「頭がいい人」というのは、一体、どういう人の事ですか？
What kind of person is a "smart person"?
最近、父の頭が白くなってきた。
Recently, my father's hair has been turning gray.
あの話、頭からウソだったんだよ。
That story was a lie from the very beginning.