Here

adv., n., & int.
—adv.
1 in or at or to this place or position (put it here; has lived here for many years; comes here every day).
2 indicating a person's presence or a thing offered (here is your coat; my son here will show you).
3 at this point in the argument, situation, etc. (here I have a question).
—n. this place (get out of here; lives near here; fill it up to here).
—int.
1 calling attention: short for come here, look here, etc. (here, where are you going with that?).
2 indicating one's presence in a roll-call: short for I am here.
Phrases and idioms:
here and now at this very moment; immediately. here and there in various places. here goes! colloq. an expression indicating the start of a bold act. here's to I drink to the health of. here we are colloq. said on arrival at one's destination. here we go again colloq. the same, usu. undesirable, events are recurring. here you are said on handing something to somebody. neither here nor there of no importance or relevance.
Etymology: OE her f. Gmc: cf. HE