Definitions
v. Close something tightly to prevent anything entering or escaping
密封；封住
n. A covering or fastening that keeps something securely closed
密封层；封条
n. A sea mammal with flippers that also rests on land
海豹
Example
Seal the jar tightly to keep the biscuits fresh.
把罐子密封好，让饼干保持新鲜。
Builders should seal gaps around windows to reduce heat loss and improve household energy efficiency.
建筑工人应封住窗户周围的缝隙，以减少热量流失，提高家庭能源利用效率。
Collocations
- seal an envelope
- seal a gap
- an airtight seal
- break the seal
Word family
- sealed (adj.)
- sealer (n.)
- unseal (v.)
Antonyms
- unseal
Usage tip
作动词强调封严；作名词也可指海豹，注意语境。
FAQ
- What does seal mean?
- Close something tightly to prevent anything entering or escaping A covering or fastening that keeps something securely closed A sea mammal with flippers that also rests on land
- How is seal pronounced?
- UK /siːl/, US /siːl/. Use the audio buttons above to listen.
