# LEO

/ˈɫioʊ/ (US)

Source: https://englishreference.com/word/leo
Updated: 2026-08-08

## Senses

### 1. zodiac sign

noun · CEFR B1

the fifth sign of the zodiac, represented by a lion, for people born between July 23 and August 22.

For teachers: the fifth sign of the zodiac, traditionally associated with the constellation of the same name and the symbol of the lion.

- My sister is a Leo, so she loves being the center of attention at parties.
- In traditional astrology, Leo is considered a fire sign ruled by the Sun, supposedly bestowing a charismatic and creative nature upon those born under it.

### 2. police officer

noun · CEFR C1 · Formal · Technical

Stands for Law Enforcement Officer.

For teachers: Abbreviation for Law Enforcement Officer. Often used in professional or legal contexts to refer to police and other agents.

- The training program was designed specifically for LEOs working in urban areas.
- The protocol requires every LEO on the scene to activate their body-worn camera before engaging with the suspect.

### 3. satellite orbit

noun · CEFR C1 · Technical

Stands for Low Earth Orbit.

For teachers: Abbreviation for Low Earth Orbit. Refers to an altitude of 2,000 kilometers or less, where most artificial satellites are positioned.

- Most communication satellites are launched into LEO because it requires less energy.
- The proliferation of space debris in LEO has become a significant concern for international space agencies managing active satellite constellations.

### 4. clothing

noun · CEFR B2 · Informal

a short way of saying 'leotard', a tight piece of clothing that covers the body, used by dancers or gymnasts.

For teachers: a clipping of leotard. Refers to a skin-tight one-piece garment that covers the torso but leaves the legs free.

- She packed her pink leo and ballet shoes for her dance class.
- The gymnast adjusted her leo before stepping onto the balance beam for her final routine of the competition.

## Examples

- The company launched several LEO satellites to provide internet access.
- Because LEO satellites are closer to the ground than traditional ones, they offer much faster data speeds for users.
- The proliferation of LEO constellations has significantly reduced signal latency for global communications, though it has also increased concerns regarding orbital debris and space traffic management.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.