collateral

C1 · Advanced Uncountable noun Academic

n. the brochures, flyers, and digital content used to help sell a product.

n. the collection of media and printed materials used to support the sales of a product or service.

“The design team is busy creating the sales collateral for the new product launch.”

“The marketing department updated all digital collateral to ensure the brand identity remained consistent across the various international territories.”

B2 · Upper Intermediate

adj. happening at the same time as something else, but not as the main part.

adj. descending from the same stock but in a different line; more broadly, accompanying or secondary to the main subject.

“The war caused a lot of collateral damage to the buildings near the airport.”

“While the policy achieved its primary goal of reducing inflation, it also had several collateral effects on the local housing market.”

C2 · Proficiency Countable noun Medicine Technical

n. a smaller blood vessel that provides another path for blood if the main one is blocked.

n. a subordinate or accessory part, such as a small blood vessel or nerve that provides an alternate route.

“The doctor explained that the patient's body had grown collaterals to help blood reach the heart.”

“The surgeon noted that the chronic occlusion had stimulated the growth of extensive collateral circulation, which partially compensated for the restricted blood flow.”