Answer:

fri

Answer	Crossword Clue
FRI	"Thank goodness" day
FRI	Calendar abbr.
FRI	Part of TGIF

FRI	Occasion for HS football games, usually
FRI	Part of MTWTF
FRI	Sat. preceder
FRI	Work wk. ender
FRI	Wk. element
FRI	Cal. column
FRI	Datebook abbr.
FRI	Work wk. end

FRI	Part of 93D
FRI	Pt. of TGIF (3)
FRI	When "Route 66" aired: Abbr.
FRI	Much anticipated day: Abbr.
FRI	Thu. follower
FRI	Calendar col.
FRI	Pt. of TGIF
FRI	Much-anticipated day: Abbr.

FRI	"The Brady Bunch" TV night
FRI	Thanksgiving follower: Abbr.
FRI	End of most work wks.
FRI	Good day?: Abbr.
FRI	Part of TGIF: Abbr.
FRI	It can be casual: Abbr.
FRI	Part of T.G.I.F.: Abbr.
FRI	Time assoc. with a common superstition

FRI	It might be casual: Abbr.
FRI	"F" that most school kids look forward to: Abbr.
FRI	Part of TGIF (abbr.)
FRI	Day of the wk.
FRI	Good day? (abbr.)
FRI	Last of the work wk.
FRI	Wk. ender, for most
FRI	Popular happy hour day (abbr.)

FRI	"Good" day (abbr.)
FRI	Calendar watch abbr.
FRI	Thurs. follower
FRI	T.G.I. day
FRI	Part of T.G.I.F. (abbr.)