All 5 Uses

solemn
in
Cyrano de Bergerac
(Auto-generated)

(He declaims solemnly): Envoi†
Act 1 *

solemnly = with seriousness and dignity
BELLEROSE (solemnly): Sic transit!†
Act 1
Nothing more solemn than a tear—sublimer; And I would not by weeping turn to laughter The grave emotion that a tear engenders!†
Act 1

solemn = very serious--possibly dignified
Solemnly): Cric!†
Act 3

solemnly = with seriousness and dignity
(Solemnly): I swear that Christian's soul, his nature, were... (Hastily correcting himself): Nay, that they are, the noblest, greatest... ROXANE: Were†
Act 4

Definitions:

(1) (solemn)
in a very serious (and often dignified) manner
(2) (meaning too rare to warrant focus)
Less commonly, solemn can mean that something was done with great or appropriate ceremony. It can also be used to describe something as dark or undecorated.