Liquid
noun
Things that have a fluid body are made of liquid.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
機内に持ち込み可能な液体の量はどれぐらいですか。
How much liquid can I bring onto a plane?
An update is needed before you can continue but you have more than one WaniKani tab open.
Finish up what ever you are doing on the other tab(s), then close them to continue.
The update will complete automatically once the other tab(s) are closed.