wear and tear

Từ điển WordNet v3.1 - WordNet Dictionary

noun

decrease in value of an asset due to obsolescence or use
• Syn:
depreciation
• Derivationally related forms:
depreciate (for: depreciation)
• Hypernyms:
financial loss, non-cash expense
• Hyponyms:
straight-line method, straight-line method of depreciation, write-off, write-down