friday

As adverbs the difference between ao and friday

is that ao is initialism of amongst/among/and others|lang=en while Friday is on Friday.

As nouns the difference between ao and friday

is that ao is a Japanese color word that includes what English-speakers would call blue and green while Friday is the sixth day of the week in many religious traditions, and the fifth day of the week in systems using the ISO 8601 norm; the Biblical sixth day of a week, the day before the Sabbath, or "day of preparation" in preparation for the Sabbath; the Islamic sabbath; it follows Thursday and precedes Saturday.

As a proper noun AO

is abbreviation of Anarchy Online|lang=en.

As a noun friday is

the sixth day of the week in many religious traditions, and the fifth day of the week in systems using the norm; the biblical sixth day of a week, the day before the sabbath, or "day of preparation" in preparation for the sabbath; the islamic sabbath; it follows thursday and precedes saturday.

As an adverb friday is

on friday.

As a noun Friday

is the sixth day of the week in many religious traditions, and the fifth day of the week in systems using the ISO 8601 norm; the Biblical sixth day of a week, the day before the Sabbath, or "day of preparation" in preparation for the Sabbath; the Islamic sabbath; it follows Thursday and precedes Saturday.

As an adverb Friday

is on Friday.

As a proper noun Frigg is

the wife of Odin, and the Norse/Germanic goddess of married love, the heavens, home and hearth, after whom Friday is named (due to her being identified with Venus).