This might be the word "extra." If you have a supply of something, often that means you have extra.
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A five letter word that starts with 'tha' is THANK.
Queer is a five letter word.
apple
Organ
Beans
Lungs.
kitty
ClaspCreamCheapCleatCouldCasteCrimpChoseClone
carry
Kudos is a five-letter word for award, but it starts with k.
scarce?