Source : Webster's Revised Unabridged Dictionary (1913)

Marquee \Mar*quee"\, n. [F. marquise, misunderstood as a plural;
   prob. orig., tent of the marchioness. See {Marquis}.]
   A large field tent; esp., one adapted to the use of an
   officer of high rank. [Written also {markee}.]

Source : WordNet®

marquee
     n 1: large and often sumptuous tent [syn: {pavilion}]
     2: permanent canopy over an entrance of a hotel etc. [syn: {marquise}]