Frequency: The word is one of the 3000 most common words in English.
1.
Mental means relating to the process of thinking.
...the ~ development of children.
...intensive ~ effort.
ADJ: ADJ n
~ly
I think you are ~ly tired...
Physically I might not have been overseas but ~ly and spiritually I was with them.
ADV: ADV adj/adv, ADV with v, ADV with cl
2.
Mental means relating to the state or the health of a person’s mind.
The ~ state that had created her psychosis was no longer present.
...~ health problems.
ADJ: ADJ n
~ly
...an inmate who is ~ly disturbed.
...the needs of the ~ly ill and the ~ly handicapped.
ADV: usu ADV with cl/group, also ADV after v
3.
A ~ act is one that involves only thinking and not physical action.
Practise ~ arithmetic when you go out shopping...
ADJ: ADJ n
~ly
This technique will help people ~ly organize information.
ADV: ADV with v
4.
If you say that someone is ~, you mean that you think they are mad. (BRIT INFORMAL)
I just said to him ‘you must be ~’.
= crazy, mad
ADJ disapproval
5.
If you make a ~ note of something, you make an effort to store it in your memory so that you will not forget it.
She made a ~ note to have his prescription refilled.
PHRASE: V inflects, PHR of n, PHR to-inf