Translation guide
The English prefix 'pre-' is used to form words meaning 'before' in time, order, or position. In Japanese, this concept is expressed through prefixes, adverbs, or compound structures rather than a single direct equivalent.
Expressing that something occurs before a specified event or time.
Attach 前 (まえ) after a noun or verb phrase to mean 'before'. This is the most common way to express 'pre-' in temporal contexts.
戦前の日本
pre-war Japan
出発前に確認してください。
Please check before departure.
Means 'prior' or 'in advance'. Often used in formal or business contexts.
事前に予約が必要です。
Pre-booking is required.
Means 'preliminary' or 'reserve'. Used for things prepared in advance.
予備調査
preliminary investigation
Means 'preceding' or 'going ahead'. Often used in technical or academic contexts.
先行研究
previous research (pre-existing studies)
Loanword from English 'pre-', used in modern compounds, often in marketing or casual contexts.
プレオープン
pre-opening
Indicating that something comes before something else in a sequence or hierarchy.
Describing something done in preparation for a main event.
Unlike English, Japanese does not have a single prefix that can be attached to any word to mean 'pre-'. Instead, use specific compounds or phrases like 前 (まえ/ぜん) or 事前 (じぜん).
To say 'before doing something', use the dictionary form of the verb + 前に (まえに). For example, 食べる前に (before eating).