It's yd
It is SCO.
SD
Velocity= v.
rel. (religion)
Either "abbr." or "abbrev."
The abbreviation for Idaho is ID.
Missouri
IOC IOC
The word agreement is not usually abbreviated. However, it could possibly be written as "ab", "abbrev", or "abb". The most common would probably be "abbrev".
The abbrev. For lake ontario is O.
cm - abbrev. for centimetre
One can abbreviate the word "abbreviated" by either by abbr. or abbrev.