1.
or, otherwise
Formal conjunction presenting alternatives, used primarily in legal, official, and written contexts.
Register: Formal/written. Common in:
- Legal documents
- Official forms and notices
- Terms and conditions
- Formal instructions
FORMALITY SCALE ("or"):
- か: neutral, everyday
- または: formal, written
- 若しくは: very formal, legal
- あるいは: formal, with a nuance of possibility
Hierarchical usage: In legal Japanese:
- 若しくは: connects items within a group (the smaller "or")
- または: connects groups (the larger "or")
Example
A若しくはBまたはC若しくはD
= (A or B) OR (C or D)
Kanji note: The kanji written here normally carries the meaning "young" (若い), but in 若しくは it is ateji — a purely phonetic use with no connection to youth.
Everyday alternative: In normal speech and writing, use か or または instead.
Related Words
Related:
あるいは (or, or perhaps (formal))
Related:
か (or (everyday particle))
Compare:
乃至 (from... to...)