Helmet Definition, Examples, and Usage Tips

Meaning 1：protective headgear (Helmet)

Helmet 🔊

/ˈhɛlmɪt/

A hard hat that you wear on your head to keep it safe from harm, often used when riding a bike or doing sports.

Helmet worn while cycling on a sunny day

protective headgear 🔊

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/prəˈtɛktɪv ˈhɛdˌɡɪr/

A hard hat worn on the head to prevent injury, commonly used in cycling, sports, and construction.

📁 Category：Entertainment & Sports 🔖 Level：Beginner

📘 Details & Usage

📖 Root Explanation

From Old English 'helm' (protection) + diminutive suffix '-et', meaning 'little protection'.

💡 Mnemonic

Think 'HELP-MET' – a helmet helps met when you fall, protecting your head from injury.

📖 Example

Always check that your helmet fits snugly before going for a bike ride in the park. 🔊 Always check that your helmet fits snugly before going for a bike ride in the park.

🔗 Collocations

wear a helmet – to put a helmet on one's head for protection

bicycle helmet – a lightweight helmet designed for cycling

safety helmet – a helmet that meets safety standards for protection

🔄 Synonyms

hard hat (n) – a rigid protective helmet worn by construction workers

crash helmet (n) – a helmet designed to absorb impact, especially for motorcyclists

headgear (n) – any covering for the head, including helmets and hats

🚫 Antonyms

bare head (n) – a head without any protective covering

🌱 Derivatives

helmeted (adj) – wearing a helmet

helmetless (adj) – without a helmet

📖 Cultural Story

Originates from Proto-Germanic '*helmaz' (covering). In medieval times, knights wore metal helmets; today, it's essential for cycling and sports safety.