HSK 5
确保
quèbǎo动
to ensure; to guarantee
出发前请确保门窗关好。
Chū fā qián qǐng què bǎo mén chuāng guān hǎo.
Make sure the doors and windows are closed before leaving.
Say it
Hold the button, say it, then let go.
Other HSK words sharing a character
Also free:
New in the HSK 3.0 word list at level 5.