Synonym Nuance VS
How to say "One" in Japanese
Both words can translate to "one", but which should you choose?
Japanese Option A
億
おく (oku)
N3 / CEFR Syllabus
VS
Japanese Option B
相次いで
あいついで (aitsuide)
N2 / CEFR Syllabus
Nuance Contrast & Translation Difference
When translating "one" into Japanese, you must choose carefully between 億 and 相次いで.
In Japanese, 億 (おく (oku)) is typically associated with "one hundred million (100,000,000)" (Syllabus Level: N3) and represents A large numerical unit in Japanese. 1億 = 100,000,000. Often used for large amounts of money, population, or astronomical figures..
On the other hand, 相次いで (あいついで (aitsuide)) maps to "one after another; in succession" (Syllabus Level: N2) and represents Describes multiple events or incidents happening consecutively. Often used for significant or repeated occurrences.. A literal translation of "one" can often sound unnatural to native Japanese speakers if mixed up!
Bilingual Context for "億"
日本の人口は約1億2千万です。
Japan's population is approximately 120 million.
Bilingual Context for "相次いで"
事故が相次いで発生した。
Accidents occurred one after another.
Nuance Mastery Quiz
Which Japanese word perfectly fits this blank space?
Fill in the blank: "日本の人口は約1 ＿＿＿ 2千万です。" (Meaning: "Japan's population is approximately 120 million.")
🎉 Correct Answer!
Remember: "億" fits here because it means "one hundred million (100,000,000)" in the context of: "Japan's population is approximately 120 million.". "相次いで" represents "one after another; in succession".