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# eightieth

«eightieth» in Mova's school dictionary: **The ordinal number for 80: coming after the seventy-ninth…** — its meaning for a pupil, its sense in the lessons and examples.

### part of speech

adjective; noun (the eightieth, an eightieth); ordinal number (80th)

### meaning for a pupil

1) The ordinal number for 80: coming after the seventy-ninth and before the eighty-first. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/eightieth/#m1)

2) One of 80 equal parts of something (1/80). [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/eightieth/#m2)

### sense in the lessons

In maths, ordinal numbers show order in a line or list; in everyday life, an eightieth birthday is a big celebration; phrases: «eightieth birthday», «the eightieth anniversary», «one eightieth».

### examples

- Granny had a big party for her eightieth birthday. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/eightieth/#x1)
- He finished in eightieth place out of 200 runners. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/eightieth/#x2)
- This year is the eightieth anniversary of our school. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/eightieth/#x3)
- One eightieth of 160 is 2. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/eightieth/#x4)
- The eightieth page of my book has a map. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/eightieth/#x5)
- Written in figures, eightieth is 80th. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/eightieth/#x6)

### note

Spelling: eight + ieth (the y of eighty changes to i): eightieth. Maths: an eightieth = 1/80 = 0.0125. Ordinal: 80th; cardinal: eighty.

### Trees and pragmatics

[Every meaning and example of «eightieth» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/eightieth/), each sentence with its dependency tree and frames.