英和和英

a cool head

He has a cool head

to calm down one's thoughts

a dull head

a vacant mind

to scratch one's head―（恥じてなら）―hang one's head for shame

I feel out of it.

to condemn one without a hearing

to cut one's hair

to make a great effort of the mind in order to understand or find the answer to a difficult question

a level head

a hard head

I am going to have my hair cut.

a precise mind

quick‐witted

Cool off!

to beat one's brains―cudgel one's brains―rack one's brains―ransack one's brains

have a thick skull

a bald slippery head

the head of a member of the Japanese nobility

I'm a bit out of it.

a nimble mind

to lower one's head

of a person's mind, to be favorably inclined towards something

beating a person on the head

to rack one's brains―cudgel one's brains―worry （oneself）

to lay one's head on the pillow―recline one's head on the pillow

He has a coarse brain.

the nod of a head

A curious style of head-dress is in fashion.