以内
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Base noun form used as a suffix or adverb. Attaches to numbers or quantities to indicate a limit not exceeding that amount. Example: 『三人以内』 (san-nin inai, 'within three people / No more than three people').
Theme

User and their coworker Ken are discussing a project deadline in the office. Ken asks about the time limit for completing a task.

以内

いない

within / less (no more) than

Core Language Building BlocksAdverbs & Connectors

Memory Hook

Think of 'in' and 'less' combined: 『以内』 (inai, 'within / Less than') means staying inside a limit. 'In' + 'nai' (like 'no more') → within bounds!

Cultural Note

『以内』 (inai, 'within / Less than') is commonly used in Japanese for time limits, distances, or quantities, such as in signs like 『制限速度50キロ以内』 (seigen sokudo 50-kiro inai, 'speed limit within 50 km / H') or deadlines like 『一週間以内に』 (isshuukan inai ni, 'within one week').

Forms

Base: 以内Base noun form used as a suffix or adverb. Attaches to numbers or quantities to indicate a limit not exceeding that amount. Example: 『三人以内』 (san-nin inai, 'within three people / No more than three people').