Read along with the three podcasts, or open the full dictionary entry for Radar for the definition, Arabic meaning, synonyms and example sentences.
Narrator: Today's word is "Radar" — noun, pronounced /ˈreɪdɑː/, with the stress on "ra".
Narrator: Radar is a system that detects the presence and position of objects using radio waves.
Narrator: In plain English, radar is the technology that bounces radio waves off things to find where they are — like on ships and planes.
Narrator: It is an acronym from Radio Detection And Ranging, coined in the 1940s.
Narrator: "On the radar" describes something that is being noticed or considered, especially a potential issue or threat.
Narrator: It differs from sonar because radar uses radio waves in the air, whereas sonar uses sound waves in water.
Narrator: "Under the radar" is a sense meaning going unnoticed or escaping detection.
Narrator: Aviation, meteorology, military, maritime navigation and air traffic control all rely on the word radar.
Narrator: So remember: radar is radio detection and ranging, an acronym from the 1940s.
Speaker A: What does radar stand for?
Speaker B: Radio Detection And Ranging! RADAR is an acronym from the 1940s, so it's a system that detects objects using radio waves.
Speaker A: So it bounces waves off things?
Speaker B: Exactly — like a bat's echo-location!
Speaker A: Example sentences?
Speaker B: "The plane showed on radar"; "it's on my radar"; "he flew under the radar" — a screen, an awareness and an idiom.
Speaker A: Common mistakes?
Speaker B: Don't confuse radar with sonar, because radar uses radio waves in the air, while sonar uses sound waves in water.
Speaker A: Close relatives?
Speaker B: "Sonar" the underwater cousin, "lidar" the laser twin, "sensor" the general alternative. The word keeps its detecting charm!
Speaker B: Let's use "radar" in AI prompts — useful for aviation-apps and trend-tracking tools.
Speaker A: So a prompt could frame a system?
Speaker B: Right. For an aviation app, you'd write:
Prompt: Write a short explainer on how an air traffic radar tracks planes, naming one data point it shows.
Speaker A: How about a trends tool?
Speaker B: Ask the model to frame a watch:
Prompt: Draft a marketing note on a trend that's on the radar for next year, naming two indicators.
Speaker A: Could it help with a weather bot?
Speaker B: Yes, you can frame a forecast:
Prompt: Summarise in two sentences how weather radar detects rain, naming one display type.
Speaker A: One more?
Speaker B: For a career chatbot, try this:
Prompt: Write a short tip on how to keep a new skill on your radar for promotion, naming one learning resource.
Radar — meaning in Arabic & definition More R courses GL Dictionary