Being very important, or key to something.
Having or containing the centre of something.
Being in the centre.
Exerting its action towards the peripheral organs.
centre
Promoting the good of any person; favourable; propitious.
Generally warm, approachable and easy to relate with in character.
Inviting, characteristic of friendliness.
Without any hostility.
Of or pertaining to friendlies (friendly noun sense 2, below). Also applied to other bipolar confrontations, such as team sports.
Compatible with, or not damaging to (the compounded noun).
Being or relating to two or more natural numbers with a common abundancy.
Having an easy or accepting relationship with something.
A person or entity on the same side in a conflict.
A game which is of no consequence in terms of ranking, betting etc.