Hy

As in high in a plane.
As in hi England.
As in hi-5 with workmates (notionally at least).
As in high excitement that the car started!
As in hiya Friend R, here I am again.
As in beautiful fragrant Hyacinth, a more willing blip subject than the cats!
As in highly exhausted, after 17 hour day.
As in hi’m so sorry for deferred browsing! :)