one: meaning, pronunciation and examples

What does “one” mean?

1. 1

   numberthe number 1

   I have one brother and two sisters.

2. 2

   pronounused instead of repeating a noun already mentioned

   I don’t like the red shirt, I prefer the blue one.

3. 3

   pronounpeople in general (formal)

   One should always be polite.

Common phrases with “one”

• one of
• one day
• one by one
• no one

“one” is on these word lists

• A1A1 English vocabulary (beginner)
• English function words: pronouns, prepositions and more
• English vocabulary for numbers and quantity

Learn these words next

• eight numberA1the number 8
• five numberA1the number 5
• four numberA1the number 4
• hundred numberA1the number 100
• million numberA1the number 1,000,000
• second numberA1coming after the first one in order
• seven numberA1the number 7
• six numberA1the number 6