smokeless
part of speech
adjective (smokeless)
meaning for a pupil
1) Giving off little or no smoke when burned: smokeless fuel. tree →
2) Without smoke: a smokeless sky. tree →
3) (law, UK) A «smokeless zone» is an area where only fuels that make little smoke may be burned. tree →
sense in the lessons
Science and history: after the deadly London smog of 1952, Britain passed the Clean Air Act and made smokeless zones, so people burned smokeless coal. Everyday: «smokeless» fuels and stoves are better for the air. In the old days of steam, «smokeless» meant a very clean fire.
examples
- Our town is a smokeless zone. tree →
- Dad bought smokeless fuel for the stove. tree →
- Smokeless coal helped clean the air in cities. tree →
- The sky above the factory was smokeless at last. tree →
- Modern stoves are almost smokeless. tree →
- The cosy room had a bright, smokeless fire. tree →
note
Suffix -less means «without»: smokeless = without smoke. «Smokeless tobacco» is chewed tobacco — it is still harmful.
Trees and pragmatics
Every meaning and example of «smokeless» parsed by Mova, each sentence with its dependency tree and frames.