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- Dictionarynum·ber one/ˌnəmbər ˈwən/
noun
- 1. a person or thing that is the best or the most important in an activity or area: "businesses that were number one in their markets"
- 2. used in reference to oneself: "you must look after number one"
adjective
- 1. most important or prevalent; foremost: "a number-one priority"
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The meaning of NUMBER ONE is one's own interests or welfare : oneself —often written No. 1. How to use number one in a sentence. one's own interests or welfare : oneself —often written No. 1; one that is first in rank, importance, or influence —often written No. 1…
number one noun (THE BEST) [ S ] the most important, best, most noticeable, or most famous person or organization in a particular area of activity: She's still the world number one in tennis. I'm your number one fan. SMART Vocabulary: related words and phrases.
Number one definition: oneself, especially one's own well-being or interests. See examples of NUMBER ONE used in a sentence.
Number one means better, more important, or more popular than anything else of its kind. The economy is the number one issue by far. By the way, I'm your number-one fan. In popular music, the number one is the best-selling song in any one week, or the group or person who has recorded that song.
1. the first in a series or sequence. 2. an informal phrase for oneself, myself: to look after number one. 3. informal the most important person; leader, chief: he's number one in the organization. 4. informal the bestselling pop record in any one week.
NUMBER ONE meaning: 1 : a person, thing, or position that is highest in rank the most important person or thing in a group of people or things; 2 : the most successful person or thing in a group of people or things.
Definitions of number one. noun. the first or highest in an ordering or series. synonyms: first. see more. noun. the first element in a countable series. synonyms: first, number 1. see more.
