supplemental

C1 · Advanced Technical

adj. describes something that happens outside of a normal schedule, like an extra flight.

adj. referring to services or items provided outside of a standard schedule or regular provision.

“The airline added a supplemental flight to handle the holiday crowds.”

“The charter company operates supplemental air carrier services during peak seasonal demand to alleviate pressure on commercial routes.”

B2 · Upper Intermediate Countable noun

n. a thing that is added to something else.

n. an item, document, or amount added to a larger whole to complete or enhance it.

“The new law included a supplemental for emergency school funding.”

“The committee approved a budget supplemental to cover the unforeseen costs of the infrastructure repairs.”

C1 · Advanced Countable noun Law Formal · Technical

n. extra money given by a government for a specific project.

n. a formal requisition or piece of legislation that provides additional funding for an existing program.

“Congress passed a supplemental to help the city after the flood.”

“The defense department requested a supplemental to ensure the continued operation of the peacekeeping mission through the end of the fiscal year.”