tightness是什么意思？

Tight clothes or shoes are rather small and fit closely to your body.

If you hold someone or something tight, you hold them firmly and securely.

Tight controls or rules are very strict.

Something that is shut tight is shut very firmly.

Skin, cloth, or string that is tight is stretched or pulled so that it is smooth or straight.

Tight is used to describe a group of things or an amount of something that is closely packed together.

If a part of your body is tight, it feels rather uncomfortable and painful, for example because you are ill, anxious, or angry.

A tight group of people is one whose members are closely linked by beliefs, feelings, or interests.

A tight bend or corner is one that changes direction very quickly so that you cannot see very far round it.

A tight schedule or budget allows very little time or money for unexpected events or expenses.

A tight contest is one where none of the competitors has a clear advantage or looks likely to win, so that it is difficult to say who the winner will be.

If you say that someone is tight, you disapprove of them because they are unwilling to spend their money.

If you are in a tight corner or in a tight spot, you are in a difficult situation.

You can say 'sleep tight' to someone when they are going to bed as an affectionate way of saying that you hope they will sleep well.