firework

Everyday

1. A firework is a small device with powder inside that explodes to make bright colours, sparks and loud bangs in the sky. tree →
2. Fireworks (plural) often means a show of them. tree →
3. Informally, fireworks can mean an angry argument or something very exciting. tree →

In the lessons

In safety lessons fireworks are explosives: only adults should light them, you stand far back, never go back to one that did not go off, and pets need to be kept indoors because the bangs scare them. In everyday life fireworks are set off at celebrations such as Bonfire Night (UK), New Year, Diwali, Canada Day and Independence Day (USA). In science they show chemical reactions: different metals make different colours. Phrases: fireworks display, set off fireworks, light a firework.

Examples

• We watched the fireworks from the hill. tree →
• Only grown-ups should light fireworks. tree →
• The fireworks made red, green and gold sparks. tree →
• Our dog hides under the bed when there are fireworks. tree →
• Never pick up a firework that has not gone off. tree →
• There is a big fireworks display on New Year's Eve. tree →
• Hold a sparkler at arm's length and wear gloves. tree →
• Different chemicals give fireworks their colours. tree →
• "I haven't any firearms," said George, "but I have a firework. tree →

Note

Usually used in the plural: fireworks. It is one word (not «fire work»). Sparklers are a kind of firework and get hot enough to burn badly, so put used ones in a bucket of water. Many places have laws about who can buy and use fireworks.