1. to extend or stretch something beyond a safe or reasonable limit
2. to commit oneself to more activities or obligations than one can handle
3. to spend or invest more money than one can afford
Usage: financial

Examples

• Don’t overextend your arm when reaching for the top shelf.
• She overextended herself by volunteering for too many committees.
• The company overextended its resources during rapid expansion.
• He overextended financially by buying an expensive house.
• The athlete overextended his knee during the jump.
• Many students overextend themselves with too many extracurricular activities.
• The business overextended its credit line and faced bankruptcy.