Incorrect spelling, explanation: supply features a double -p letter in the middle, which is something that a number of English speakers forget about. As a consequence, they misspell supply as suply, which is unacceptable. The only correct spelling of the word is supply.

Correct spelling, explanation: an English word supply comes from the Latin form supplere, which had the meaning of fill up and it joined the forms sub and plere. The former meant from below while the latter meant fill. Supply was also influenced by Old French and in Middle Ages, it appeared in English too. In modern English supply can be either a noun or a verb.

Definition of supply:
1. noun – something which is available and can be used,
Before I leave, I will provide your fridge with a supply of healthy food so please do not eat junk food too often.
2. verb – to provide something which is needed,
The soldiers will supply the medicines to the dangerous areas of the country as soon as it’s possible.

Expressions and phrases with supply:
A few common expressions and phrases with supply are: supply and demand, supply chain, and supply system.
Petrol prices depend mainly on supply and demand and therefore can’t be changed without any good reason.
As a supply chain manager, he really has a lot of tasks to do every day at work.
Nothing will go well in a company if a supply chain is poor so if you want to make profits, you need to improve this area.