The phrasal verb "tire out" is primarily used in informal contexts and is quite prevalent in everyday speech. It is commonly employed to describe a situation where someone is exhausted or fatigued, typically due to physical or mental exertion. For example, parents might say, "Playing at the park really tired the kids out," indicating that the children expended a lot of energy and are now tired. This phrasal verb is less likely to be used in formal contexts, where one might use alternatives like "exhaust" or "fatigue." "Tire out" is versatile in usage, often applicable in various contexts involving effort or activity, and it conveys a thorough depletion of energy, suggesting that the subject has been pushed to their limit of endurance.
B1
PreIntermediate
1. To cause someone to become physically or mentally exhausted.
The long hike through the mountains really tired me out.
Playing with the children for hours on end can tire anyone out.
2. To wear out something through prolonged use or exertion.
The constant use of the old machine eventually tired it out.
Running the engine at maximum speed for too long can tire it out.