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Jet stream

UK //ˈdʒɛt striːm// US //ˈdʒɛt strim// Pronunciation

Definition

A narrow band of fast-moving air in the atmosphere at high altitudes.

Listen to definition

In simple words: A fast, high-altitude wind blowing in the atmosphere.

Examples

• The **jet stream** significantly affects the weather patterns in North America.
• Pilots often rely on the **jet stream** to optimize flight paths for shorter travel times.
• Changes in the **jet stream** can lead to extreme weather events.
• Meteorologists study the **jet stream** to make accurate forecasts.
• The **jet stream** flows from west to east across the globe.

Usage notes

Used mainly in meteorology. Appropriate for discussions about weather patterns, climate, and aviation. Not common in everyday conversation.

Grammar pattern

standalone term

Memory hint

Think of jets flying fast in the sky, where streams of wind propel them.

Collocations

• upper-level winds
• change in jet stream
• jet stream patterns

Synonyms

• air current
• wind flow
• atmospheric current

Common mistakes

• Confused with 'jet set', which refers to wealthy people traveling
• Misunderstanding the concept, thinking it's relevant only at low altitudes
• Using inappropriately outside of climate discussions or weather reporting