replacement

Everyday

1. A replacement is a new thing or person that takes the place of one that is broken, lost or gone. tree →
2. Replacement is the act of putting something new in place of something old. tree →

In the lessons

In everyday life: a replacement for a broken toy, a replacement teacher, a replacement bus service. In sport a substitute player is a replacement. In maths (probability): «with replacement» means you put the item back before picking again. Phrases: «a replacement for», «with replacement», «replacement parts».

Examples

• The shop gave me a replacement for my broken watch. tree →
• We had a replacement teacher while Mr Jones was ill. tree →
• There's a replacement bus service because the trains are not running. tree →
• He came on as a replacement in the second half. tree →
• Pick a ball from the bag, with replacement. tree →
• Hip replacement surgery helped Grandma walk again. tree →
• The replacement batteries cost £4. tree →

Note

Noun of «replace». In probability, «with replacement» keeps the total the same each pick; «without replacement» makes the total one less after each pick, which changes the chances.