no
Accepted is used as a verb or adjective.
No the word acceptable is not a noun. It is an adjective.
Yes.
The noun forms of the adjective 'acceptable' are acceptability and acceptableness.
No. It is a proper noun. However, arabic is acceptable.
No, Oxon is a proper noun
Firstly is acceptable now. In the past 'first' was the only acceptable noun and I personally think it sounds better, but both are correct. Previous post: "'first' was the only acceptable noun" I disagree. "First" as a noun was never in dispute. But as an adverb it always has been, and still is, incorrect.
Yes, a thicket of trees is a perfectly acceptable collective noun.
No. OJ is an abbreviation or a proper noun/name.
There are two different acceptable forms of the possessive noun in this case. It may be written as either James' or James's.
The word valid is an adjective. It means to be acceptable.
The compound noun 'tryout' is written as either a single word or a hyphenated word, 'try-out'. Either is acceptable.
The plural of the noun percent is percent or percents. Both are acceptable, though percent is preferred.
Actually, there are two answers to that. Both "mangos" and "mangoes" are acceptable. It depends on your preference.
Yes, the word manners is a noun, the plural form for the noun manner. The noun manner (manners) is a countable noun as a word for the way in which something is done or something happens; outward way of behaving toward others. The noun manners is also an uncountable noun as a word for social deportment; a socially acceptable way of behaving.