what does it all stand for?

so I am still fairly new to this site. Could someone please tell me what the MS-1 / DH ect all stand for?
Thanks!

[SuzySunshine]

I thought we had a sticky that outlined a bunch of abbreviations at one point but now I don't see it.

Anyway, the basics.

DH - is dear husband (DW for the few husbands we have on the board)
MS-1 - is med student first year
PGY-1 - is post graduate year 1 which is first year of residency and some specialties have variations

There are a lot more too

Thanks!

[MarissaNicole]

A few others:

BTDT - been there done that
ETA - edited to add
DF - dear fiance
SO - significant other