Pair concepts - is it a coincidence?

 Is it a coincidence that almost all concepts which have a related pair of entities are equivalent?

1) Action doer - Action doee

i) container - contained

ii) Owner - owned

iii) .....

....

2) Antonyms or Opposites

3) Function - Inverse function

4)......

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Take the example of host and guest.

1) i) Host and guest are like the container and the contained. One invites/embraces/hosts/absorbs the other.

ii) One sort of "owns" the other since the former is the container.

iii) .....

.....

2) Host and guest are antonyms

3) Hosting function is the inverse of "Guest-ing/Guest-izing" function.

4) ....

......

Take another example - sin (x) and arcsin (x)

1) i) Sine, the function, is the container which contains x which is arcsin(sin (x)).

ii) The 'sin' owns/hosts/floats the x which is arcsin(sin(x))

iii) ....

.....

2) Sine and Arcsine are antonyms

3) Sine and Arcsine are inverse functions of each other.

4) ....