Collocation Dictionary
Common collocations with solemn in American Collocation
promise
commitment
oath
pledge
promise
undertaking
vow
They all took a solemn oath to stand by each other .
responsibility
duty
obligation
responsibility
Everyone has a solemn duty to assist in the search for a lasting peace.
statement
affirmation
appeal
declaration
expression
warning
The declarations were solemn and heartfelt and moved me to tears every time.