Definitions of avail
if you avail yourself of something you use it to your advantage or benefit
The claimant (=person making claim) did not avail herself of her right to rescind (=cancel) the contract.
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verbo
full
verb
if you avail yourself of something you use it to your advantage or benefit
The claimant (=person making claim) did not avail herself of her right to rescind (=cancel) the contract.