tin hat
/'tin'hæt/
Học thuậtThân thiện
Definition
Noun: 1. A lightweight protective helmet, typically made of plastic or metal, worn by workers in construction and other hazardous occupations to protect the head from injury. 2. (Historical/Military) A steel helmet, especially one worn by soldiers in the early to mid-20th century.
Usage
The term "tin hat" is a colloquial and somewhat old-fashioned name for a safety helmet. It is used literally to refer to the protective gear itself. It can also be used figuratively to imply excessive caution or paranoia.
Examples
- Literal Use:
- Before entering the construction site, every visitor must wear a tin hat.
- The old miner's tin hat, with its lamp bracket, was on display in the museum.
- Historical/Military Use:
- In the trenches of World War I, the soldier's tin hat was his most vital piece of equipment.
- Figurative Use (implies paranoia):
- He's always talking about conspiracy theories; I think he needs to take off his tin hat.
Advanced Usage
- "To wear a tin hat" / "To have a tin hat on": To be overly suspicious or paranoid; to believe in unfounded conspiracy theories.
- You must be wearing a tin hat if you think the moon landing was faked.
Variants and Related Words
- Hard hat: The modern, more common term for a protective helmet on a construction site. It is often made of high-density plastic rather than metal.
- Safety helmet: A more formal and general term.
- Brodie helmet / Doughboy helmet: Specific historical names for the type of steel helmet used by British and American forces in WWI, which were colloquially called "tin hats."
Synonyms
- Hard hat
- Safety helmet
- Protective helmet
- (Historical) Steel helmet, Combat helmet
Related Idioms
- Tin foil hat: A more modern and specific idiom referring to a hat made of aluminum foil, humorously believed to block mind control or surveillance. It is strongly associated with extreme paranoia and conspiracy theorists.
- His theory about secret government lasers is pure tin foil hat territory.
- (Note: While related in meaning, "tin foil hat" is a distinct, idiomatic phrase and not a direct variant of "tin hat").
Noun
- a lightweight protective helmet (plastic or metal) worn by construction workers