(US, Canada, education) To take (something) as one's major field of study in an institute of tertiary education (such as a college or university).

(idiomatic) Everything; the entire collection, endeavor, or activity.

Any of various symbols used in writing and printing to indicate pauses, divisions, etc. and to aid the reader in understanding what is written.

(rail transport) A train used by the postal service to transport mail, and in some cases, to sort mail en route.

Someone who acts as a host at a formal event. / Someone who conducts a programme of varied entertainment, for example by introducing performers to the audience. / (rap music) A rapper.

A unique identifier of the form user name@domain name specifying a virtual location to which e-mail can be sent.

(American spelling) Alternative spelling of grey matter

A degree that usually requires 2-3 years beyond a Bachelor of Science and emphasizes science and scientific applications. The degree is less advanced than a Doctorate degree.

A type of fully automatic firearm that fires bullets in rapid succession by a single action of the trigger and is capable of sustained fire.

A person or group that controls or owns more than half interest of an organization's outstanding shares.