An artificial system designed to provide oxygen in an environment that lacks oxygen. / (medicine) Maintenance of vital functions of a critically ill or comatose person or a person undergoing surgery.

A group of people who informally support each other over a problem which all members share.

An entertainer or musician, or group thereof, that performs before the main event.

(informal) technical support

(UK) A financial benefit for people on a low income.

Provision of service to customers before, during and after a purchase.

In technical analysis, a price level where the price tends to find support as it is going down, so it is more likely to "bounce" off this level rather than break through it. However, once the price has passed this level, by an amount exceeding some noise, it is likely to continue dropping until it finds another support level.

plural of support level

Synonym of service dog

plural of support act