radar

noun rah-DAR Rare

Origin: English acronym 'RADAR' (radio detection and ranging)

Usage Note

Radar is used in its technical sense but also colloquially: être dans le radar de quelqu'un means to be on someone's radar. The expression conduire au radar (to drive on autopilot) informally means to act without thinking. The plural is regular: des radars.

Examples

"L'avion a disparu des écrans radar."

Natural Translation

The plane disappeared from the radar screens.

Free starter pack

Building your French vocabulary?

Get the 100 most common French words as a free PDF — one email, no spam.

Related Words

Explore French by topic

FrenchNow

French Filler Words: Euh, Bah, Du Coup, Quoi

French filler words like euh, bah, du coup, and quoi make you sound fluent, not lazy. Learn what each one does, where it goes, and how to use them naturally.

June 4, 2026 6 min read

FrenchNow

Aller + Infinitive: The Easy French Future

Form the French near future in seconds: conjugate aller in the present and add an infinitive. Learn futur proche rules, negation, pronouns, and when to use it.

June 4, 2026 6 min read

FrenchNow

Le, La, Un, Du: French Articles Made Simple

Le, la, un, du, des made simple: pick the French article family by meaning, the form by gender, and dodge the two mistakes English speakers always make.

June 4, 2026 5 min read

FrenchNow

En, Au, Aux: French Prepositions for Countries

Use en for feminine countries, au for masculine, aux for plural, and à for cities. Full French preposition rule for countries, with a lookup table and traps.

June 4, 2026 5 min read