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An "account" could be several things, depending on the context:
(1) a bank account where some money is kept - this money belongs to the account holder, but the bank is keeping it.
(2) a story that somebody is telling or writing

But in computer science, it means an identity in a website. It may keep some information about the user, and probably the user has a password which lets them access the site.


an arrow is a thin stick with a sharp point at the end. You would shoot it using a bow.

bow and arrow

Picture by Rod Waddington from Kergunyah, Australia

Arrow symbols are also used in diagrams and signs to show direction.

Course - "5500 BC the first city"


something made by a person. Usually something of historical interest. (in USA English this is written "artifact"

Course - "5500 BC the first city"



A Bill is a plan for a new piece of legislation. At this point it is being discussed in parliament (UK) or the "chambers of Congress" (USA) ... but it has not become law yet. After it has become law, it may be called an "Act of Parliament" (UK) or "Act of Congress" (USA) or a "statute".

in course "Researching a law essay"



(adjective) a material that can be put into the earth, and it will rot or decay to become part of the natural cycles of biology.

Course - "remakery"




if something is canonical it is the standard or basic version. For computer science, if something is "canonical", it means the data is organised in the standard way, which will help to avoid mistakes.

In literature, we often talk about "the canon" meaning the set of poems, plays and novels that everyone thinks are important. Don't confuse canon with "cannon" - which is a kind of big gun.

see the course CS50's Introduction to Computer Science


adj. to describe something that is connected with thinking.

Cognition (the noun) means a mental process which the person thinking is aware of. This could include other activities apart from logical reasoning, for example: trying to remember something, or paying attention to an action that you are going to repeat later.


A community (noun) is the people who live in a particular area. Metaphorically, it can be applied to other kinds of groups where people share a common interest or some common characteristic.

Community is also used to make compound nouns like "community garden" or "community college" for things that people in that particular place can use.

Course - "remakery"



Legal work may be contentious where it involves a disagreement between two or more parties.

Course -



A contingency is something that may happen in the future - probably something bad, which you should plan for.

Course - "Lord Leggatt's Commercial Law lecture"

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