The alphabet.
No. The letter Q has stood for several things (name and location names) but not words. The word "queue" (pronounced Q) can be a noun or a verb: a line of people, or to form up in an ordered line.
A collective noun for people that starts with Q is queue.
A common noun is a general word for any person, place, or thing.Examples of common nouns that start with"q" are:quadranglequailqualityquartquarterqueenquestquestionquietquillquiltquorumquotaquote
quilt
question
Apart from Iraq, which is a 'proper noun', the only things I can think of which end in a 'q' are abbreviations colloq - used in dictionaries for 'colloquial' seq - used for 'sequence' and req - used occasionally for 'required' No English words that I can think of end in a 'q'
No. Perform is a verb. A performer would be a noun.
q
quarter
Querstrasse
nine plus q is in words. 9 + q is in numbers.
The "Q" in S.P.Q.R. stood for the latin suffix "-que" which was added to any latin noun following a previous noun (in this case Populus) to stand for the conjunction "and", thereby changing a simple phrase from a singular to a compound meaning. In other words, S.P.Q.R. meant "the Senate and the People of Rome".