Cache 用作名詞時意為「貯藏物，隱藏物；貯藏所，隱藏處，藏匿處」，如 The police have seized a huge cache of drugs/explosives/weapons. (警方查獲了一大批藏匿的毒品/炸藥/武器)；The gang of armed robbers has several caches for illegal guns and homemade bombs. (該武裝搶劫集團有數個窩藏非法槍枝和土製炸彈的場所)。Cache 也是重要的電腦名詞，可指存取速度比動態隨機存取記憶體 (DRAM) 快的「快取記憶體」或資料存取速度較快的「快取」。
Cache 亦可當 (及物) 動詞用，意為「貯藏，隱藏，藏匿」，其時態變化為 cache cached cached caching caches，如 The gangsters cached a large quantity of ammunition in a remote cabin. (那些黑幫份子在偏遠的一間小木屋窩藏了大量彈藥)。
Cash 同樣可當名詞和動詞用，前者意為「現金，現款」，如 Will you pay by credit card or in cash? (你是刷卡還是付現？)；I have no cash on me. Can I pay by credit card? (我身上沒帶現金，能不能刷卡？)。Cash 用作 (及物) 動詞時意為「兌現」，其時態變化為 cash cashed cashed cashing cashes，如 Would you cash this check/cheque for me? (你能幫我兌現這張支票嗎？)。