Supply
Supplying
noun, verbal noun
Your servant gets a nice salary because the supply of available servants is so small these days. Lucky him!
供給 is a somewhat formal word you’d generally hear in the context of economics or supply and demand. You wouldn’t use it for art supplies or the food you buy every day.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
最優先事項は供給を安定させることだ。
Our maximum priority is to stabilize the supplies.