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# mb

abbreviation (MB, Mb, mb)

«mb» in the English dictionary: everyday — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

1. (computing) MB = megabyte: a unit of computer memory or file size, about one million bytes. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/mb/#m1)
2. (computing) Mb = megabit, used for internet speed (Mbps, megabits per second); 8 megabits make 1 megabyte. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/mb/#m2)
3. (science, weather) mb = millibar, a unit of air pressure on weather maps. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/mb/#m3)
4. (MB) Short for Manitoba, a province of Canada. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/mb/#m4)
5. MB is also used for «Bachelor of Medicine» after a doctor's name. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/mb/#m5)

### In the lessons

In computing lessons pupils compare file sizes (KB, MB, GB): a photo is about 3 MB. In science and weather, air pressure is shown in millibars. On Canadian addresses, MB = Manitoba. Phrases: 5 MB file, 50 Mbps broadband.

### Examples

- This photo is 3 MB. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/mb/#x1)
- The file is too big to email; it is 40 MB. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/mb/#x2)
- Our broadband speed is 70 Mbps. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/mb/#x3)
- 1,000 MB is about 1 GB. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/mb/#x4)
- The weather map shows 1,000 mb of pressure. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/mb/#x5)
- Winnipeg, MB, is in Canada. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/mb/#x6)
- A song is usually about 4 MB. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/mb/#x7)

### Note

Not a word, only an abbreviation. Capital B = byte, small b = bit: MB (megabyte) is 8 times bigger than Mb (megabit). In maths and computing problems, 1 GB ≈ 1,000 MB; 1 MB ≈ 1,000 KB (some computers use 1,024).

## On Mova

- [Trees and pragmatics of «mb» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/mb/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«mb» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/mb.html) on Mova free.