solemn vowsolemn vow
The definition of a solemn vow is a very important promise and one that has serious consequences for breaking.
An example of a solemn vow is when, at your wedding ceremony, you promise to love, honor and cherish your spouse until death.
R.C.Ch. a vow made with canonical effects stricter than those of a simple vow: e.g., a solemn vow of chastity, broken by attempting marriage while the vow is still in effect, makes the marriage both illicit and invalid