Usage priority
Collins 词频等级为 4，建议结合例句记忆，而不是只背中文释义。
第九
先理解核心含义，再看它在真实句子里的用法。
第九；九分之一
n. position nine in a countable series of things；s. coming next after the eighth and just before the tenth in position
第九；九分之一
n. position nine in a countable series of things；s. coming next after the eighth and just before the tenth in position
Choose the next layer that will help you use ninth with more confidence.
Recommended next
Learn how to use this word with grammar patterns and natural collocations.
See typical errors learners make and confusing words to avoid.
More ways to explore
Expand your vocabulary with synonyms and antonyms.
Explore words with similar spelling endings or sounds.
See other words sharing the same root.
Discover the etymology and cognates of this word.
Analyze the context and learn memory tricks to remember it.
Use ninth naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
Collins 词频等级为 4，建议结合例句记忆，而不是只背中文释义。
Dictionary facts from ECDICT.