What does that word mean?
To call Attention; To bring something to someones attention / to attract / drew someones attention, come to notice.
Attention is the cognitive process of selectively concentrating on one aspect of the environment while ignoring other thing.
1, The act of faculty of attention especially by directing the mind to an object.
2, A capacity to maintain selective or substained concentration.
From middle England Attencioun.
From Latin Attentio.
From Attendere, past participe Attentus ("to attend, give heed"); Attend
Attention comes from the word Attend where by you can not be called to Attention unless you are in attendance.
When Charles Green called for Attention he didn't use the A word, he used the B word.