bu

As a noun shop

is an establishment that sells goods or services to the public; originally a physical location, but now a virtual establishment as well.

As a verb shop

is to visit shops; to look around shops with the intention of buying something.

As an interjection shop

is (used to attract the services of a shop assistant).

As a noun purchase

is the act or process of seeking and obtaining something (e.g. property, etc..

As a verb purchase

is to pursue and obtain; to acquire by seeking; to gain, obtain, or acquire.

As an abbreviation bu is

bushel, a unit of weight or dry measure.

As an initialism BU is

boston University.

As an adjective complex

is made up of multiple parts; composite; not simple.

As a noun complex

is a problem.

As a verb complex

is (chemistry|intransitive) to form a complex with another substance.

As a noun but

is any piece of equipment used for writing with one's hand, except chalks.

As a verb bim

is .

As a noun pop

is a social club and debating society at or pop can be (also in plural) a popular classical music concert.

As a noun taxonomy

is the science or the technique used to make a classification.