exchangeable

Everyday

1. Something exchangeable can be swapped or traded for something else. tree →
2. In shops, goods that are exchangeable can be taken back and changed for a different item, size or colour. tree →

In the lessons

In everyday life, shops print «exchangeable within 28 days» on receipts. In money lessons, coins are exchangeable for other currency at a bank. In maths and science, things that are exchangeable can be swapped without changing the result, like the numbers in 3 + 4 = 4 + 3. Phrases: «exchangeable for», «exchangeable but not refundable».

Examples

• The shoes are exchangeable if they don't fit. tree →
• Sale items are not exchangeable. tree →
• Tokens are exchangeable for prizes at the arcade. tree →
• Pounds are exchangeable for euros at the bank. tree →
• In addition, the two numbers are exchangeable: 2 + 5 = 5 + 2. tree →
• These parts are exchangeable between the two toy cars. tree →

Note

Built from «exchange» + «-able»; keep the e after g (exchangeable) so g stays soft. «Exchangeable» (you can swap it) is not the same as «refundable» (you get your money back). Maths word for swappable order: commutative.