English adjective: billionth | |||
1. | billionth the ordinal number of one billion in counting order | ||
Similar | ordinal | ||
Antonyms | cardinal | ||
English noun: billionth | |||
1. | billionth position 1,000,000,000 in a countable series of things | ||
Broader (hypernym) | rank | ||
Domain region | America, the States, U.S., U.S.A., United States, United States of America, US, USA | ||
2. | billionth (quantity) one part in a billion equal parts | ||
Synonyms | one-billionth | ||
Broader (hypernym) | common fraction, simple fraction | ||