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To insert or put something into a narrow opening or gap, often with a sliding or piercing motion.
刀を鞘に挿す。
Sheath the sword.
USBをポートに挿す。
Insert the USB into the port.
Commonly used for physical insertion into slots, holes, or sheaths. Can also imply symbolic insertion (e.g., inserting a thought into a conversation).
To insert a card, ticket, or similar item into a machine for processing or validation.
切符を自動改札機に挿す。
Insert the ticket into the automatic gate.
Often used in contexts involving machines, ATMs, or automated systems.
(In gardening) To insert a branch or cutting into soil for propagation.
挿し木で植物を増やす。
Multiply plants by cuttings.
Refers to the horticultural technique of propagating plants from cuttings.
Avoid using 挿す for abstract concepts like inserting a thought into a conversation. For that, use 差し込む (sashikomu) or 入れる (ireru). 挿す is primarily for physical insertion into a narrow space.
Use 挿す when the action involves inserting something into a narrow opening where it fits snugly or is secured (e.g., keys, swords, USB drives). If the action is more about placing something loosely into a container, use 入れる (ireru).
From Old Japanese verb 挿す (sasu), related to the noun 挿し (sashi, 'insertion'). The kanji 挿 is composed of the radicals 扌 (hand) and 丵 (to plant or insert), suggesting the act of inserting something with the hand. The verb has been in use since at least the Heian period (794–1185).
挿す is a transitive verb that requires a direct object (what is being inserted). It implies a snug or precise fit into a designated space. Avoid confusing with 抜く (nuku, 'to pull out'), which is the antonym. In modern contexts, it is frequently used with technology-related items (e.g., USB, SD cards).