determiner / pronoun
another
uh-NUH-ther/əˈnʌðər/
An additional or different instance beyond the one already considered.
The child receives another apple while already holding one in her hand.

Etymology
The combination of “one” and “other” originally meant a second of two. The additional and different senses of “other” explain why another can mean either one more item or a replacement.
In context
One task naturally flowed into another.
More examples
- Please bring another chair for our arriving guest.
- This pen is broken; let me try another.
- We can discuss the proposal another day.
Similar words
- additional
- Emphasizes one more rather than a different replacement.
- different
- Emphasizes contrast rather than an extra instance.