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# ostrich

«ostrich» in Mova's school dictionary: **a very large bird from Africa that cannot fly but runs…** — its meaning for a pupil, its sense in the lessons and examples, with 5 sentences of Mova's corpora that use it.

### part of speech

noun (ostrich, ostriches)

### meaning for a pupil

1) An ostrich is a very large bird from Africa that cannot fly but runs very fast on its long, strong legs. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/ostrich/#m1)

2) It is the biggest bird in the world and lays the biggest eggs. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/ostrich/#m2)

### sense in the lessons

In maths: a bird counted; 2 legs each; also its speed or the weight of its eggs. In science: an ostrich is a bird even though it cannot fly; it has 2 toes on each foot. Myth: ostriches do not really bury their heads in the sand. Phrases: ostrich egg, ostrich feather, an ostrich farm.

### examples

- The farm has 12 ostriches. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/ostrich/#x1)
- An ostrich can run 70 km in an hour. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/ostrich/#x2)
- An ostrich egg weighs 1 kg. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/ostrich/#x3)
- How many legs do 5 ostriches have? [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/ostrich/#x4)
- The ostrich is the biggest bird in the world. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/ostrich/#x5)
- Ostriches cannot fly, but they can run very fast. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/ostrich/#x6)
- An ostrich kicks hard to defend itself. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/ostrich/#x7)
- We saw ostriches on the safari park trip. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/ostrich/#x8)
- "Is that the Ostrich you talked about?" said the Eagle in disgust. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/ostrich/#x9)

### note

Plural «ostriches» (add -es after ch). A counted animal with 2 legs, often with a speed. Trap: though it is big, an ostrich has 2 legs, not 4. Myth: «hiding its head in the sand» is not true; the saying means ignoring a problem.

### In the corpora

- [All birds have two wings and two legs; most have four toes on each foot, but the ostrich has only two.](https://md.mova.elamur.ai/free/en/corpora/school/biology/40-counting-legs-arms-wings-and-tails/12/)
- [Ostriches do not bury their heads in sand; they could not breathe, and it would not make them safer.](https://md.mova.elamur.ai/free/en/corpora/school/biology/151-ostriches-and-heads-in-the-sand/4/)
- [Ostriches have only two toes on each foot, fewer than any other bird.](https://md.mova.elamur.ai/free/en/corpora/school/biology/151-ostriches-and-heads-in-the-sand/9/)
- [An ostrich's eye is about 5 centimetres across, the biggest of any land animal and bigger than its own brain.](https://md.mova.elamur.ai/free/en/corpora/school/biology/151-ostriches-and-heads-in-the-sand/11/)
- [Ostriches swallow pebbles, which collect in the gizzard and grind tough food, because birds have no teeth.](https://md.mova.elamur.ai/free/en/corpora/school/biology/151-ostriches-and-heads-in-the-sand/12/)

### Trees and pragmatics

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