Use 'worn out' to describe extreme physical or mental tiredness, not just general sleepiness.

Physical Exhaustion

'Worn out' can emphasize feelings of being overwhelmed or fed up with a situation.

Emotional Emphasis

Mostly used in informal conversations; may be less appropriate for formal writing.

Describes objects that became ineffective because of long-term use, often needing replacement.

'Worn out' used for objects often suggests visible signs of ageing or damage.

Commonly used for items that are expected to wear out over time, like clothing or tires.

Refers to the damage over time to things that work hard, like parts in a machine.

Also used to express the exhausting effect of long-term mental or emotional strain.

Be cautious not to overuse 'worn out' for minor tiredness as it can sound like exaggeration.

Can describe the feeling of being emotionally drained due to excessive demands.