If someone sughed, they made a soft sound while breathing out. It can show that they are tired or bored.
Sughing can make people think of being tired or not interested in something.
Examples:
She sughed and looked at the clock.
He sughed loudly during the long meeting.
The little boy sughed and put his head down on the table.
I sughed when I saw how much homework I had.
She sughed like she had been working for a hundred years.
The cat sughed and went to sleep.