1 hold, have in it; bear, carry:
The capsule contained a deadly poison.
2 hold, have the capacity for, accommodate, admit, carry; seat:
This bottle contains no more than a quart. The theatre can contain 200.
3 restrain, restrict, confine, repress, control, hold back or in, curb, bridle, keep under control, suppress, check, stifle:
He could hardly contain himself when he learnt he had passed the examination.