(expressing position or location)
about; in the direction of
Cases of word usage
1) at the head of a convent or nunnery (abbess)
2) at the head of an abbey or monastery (abbot)
3) to stop, e.g. discussion at (a meeting etc) for a short time (adjourn)
4) far away from home; to or at a distance (afield)
5) high up in the air (especially at the top of a ship) (aloft)
6) at all times; without exception (always)
7) (used at the end of a prayer or hymn and meaning 'May it be so') (amen)
8) to add something in writing; to add something at the end (append)
9) something added, especially at the end of a book (appendix)
10) clever at getting what one wants (artful)