(~s)
1.
If you are sitting or standing ~, you are sitting or standing with your back straight, rather than bending or lying down.
Helen sat ~ in her chair...
Jerrold pulled himself ~ on the bed...
He moved into an ~ position.
ADJ: usu ADJ after v, v-link ADJ, also ADJ n
2.
An ~ vacuum cleaner or freezer is tall rather than wide.
...the latest state-of-the-art ~ vacuum cleaners.
ADJ: ADJ n
3.
An ~ chair has a straight back and no arms.
He was sitting on an ~ chair beside his bed, reading.
ADJ
4.
You can refer to vertical posts or the vertical parts of an object as ~s.
...the ~s of a four-poster bed.
N-COUNT
5.
You can describe people as ~ when they are careful to follow acceptable rules of behaviour and behave in a moral way.
...a very ~, trustworthy man.
ADJ: usu ADJ n