# MARS

/ˈmɑɹz/ (US) · /mˈɑːz/ (UK)

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

## Senses

### 1. the planet

noun · CEFR A1

the fourth planet from the sun, often called the 'Red Planet' because of its colour.

For teachers: the fourth planet from the Sun in the solar system, characterized by its reddish appearance due to iron oxide on its surface.

- Scientists are sending robots to Mars to look for signs of water.
- The recent rover mission to Mars aims to collect geological samples that might indicate whether the planet once supported microbial life.

### 2. Roman god

noun · CEFR B2

the Roman god of war.

For teachers: the Roman deity associated with war and agriculture, identified with the Greek god Ares.

- In ancient stories, Mars was the father of Romulus and Remus.
- The temple dedicated to Mars Ultor stood as a central monument in the Forum of Augustus, symbolizing the emperor's military vengeance.

### 3. chocolate bar

noun · CEFR A2 · British English

a popular brand of chocolate bar filled with nougat and caramel.

For teachers: a specific brand of confectionery consisting of nougat and caramel coated in milk chocolate.

- He bought a Mars bar at the corner shop for a quick snack.
- The marketing campaign for the Mars bar famously emphasized its ability to provide energy for work and play.

## Examples

- Scientists are looking for signs of water on Mars.
- Future space missions aim to land humans on Mars to study its thin atmosphere and rocky terrain.
- The exploration of Mars has transitioned from telescopic observation to sophisticated robotic landings, providing data that suggests the planet once possessed a much more hospitable environment.

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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.