替え芯 かえしん spare pencil lead Meanings also 替芯 noun spare pencil lead; pen refill (cartridge); replacement wick (e.g. of a lantern) Its kanji 替 タイ · か.える、か.え-、か.わる exchange, spare, substitute, per- 芯 シン wick In sentences Furigana この替かえ芯しんは半年はんとし持もつ。 This refill lasts half a year. #220678