Billionth Definition & Meaning
billionth
- adjective
- the ordinal number of one billion in counting order
- noun
- position 1,000,000,000 in a countable series of things
- one part in a billion equal parts
Words that rhyme with billionth
Usage tips for "billionth"
Understanding the precise definition of a word helps you use it with confidence. When using "billionth" in your writing, consider whether you need the word itself or one of its synonyms — subtle differences in meaning can change the tone of a sentence. If you're writing poetry or song lyrics, check the rhymes for billionth to find words that pair well.
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