en grande tenue (Fr.), in full dress.
en l'air (Fr.), in the air, being discussed or expected.
enlevé (Fr.), carried away, kidnapped.
en masse (Fr.), in a body, universally.
en militaire (Fr.), as a military man.
en passant (Fr.), in passing: by the way.
en plein jour (Fr.), in broad day.
en prince (Fr.), in princely style.
en pure perte (Fr.), to mere loss, to no purpose.
en queue (Fr.), like a tail, in a string or line.