item or commodity for sale, merchandise

A barcode: a set of machine-readable lines of varying width placed on products to represent pricing or other such data.

please give me / (expressing a request) please do something for me

Please do (action)

Please do not (do)

please give me / (polite, imperative) please do something for me; expressing a request

Please have a seat. / Please sit down.

Please wait

gift certificate

(honorific) to give / (honorific) to do something for me/us