When should I use “parallel” over “parallelism”, and vice versa?

I am a bit confused about the words parallel and parallelism: When and where should one use which?


First of all, consider the grammatical class they belong to in order to understand usage better:

  • Parallel is an adjective (see below, if I edit it further, I need to change it too much), a noun (see for example each of the imaginary parallel circles of constant latitude on the earth's surface) or even a verb (be side by side with something extending in a line).

When it’s an adjective, as you may already know, it’s used to classify objects that put side by side have the same distance continuously everywhere.

But it has also other meanings: about Computing, for example, it means “involving the simultaneous performance of operations”. It can be also related to Music or Grammar.

  • Parallesism is a noun and its adjective form is Parallelistic.

As F’x said, it means: “the state of being parallel or of corresponding in some way.” Also in this case it can refer to other fields, such as computing or poetry.

Source : Link , Question Author : 象嘉道 , Answer Author : Alenanno

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