taking ‘keep’, heeding, regarding.

Careful attention, care, observation, regard. (Now chiefly literary.)

Observance of a rule, command, ordinance, institution, practice, promise, etc.

More generally: the action or practice of following or respecting a particular law or of fulfilling a duty, etc.; adherence or due regard to a…

More generally: the action or practice of following or heeding a particular law, duty, etc.; adherence or regard to a particular custom…

Regard or consideration given to a person or to a request, prayer, etc. Obsolete.

The observance of a law, duty, custom, rite, etc.

With of, †to. Conscientious observance, reverence, regard. Now rare.

Observance, keeping of a commandment. Obsolete.

The quality of being heedful; attentiveness, carefulness.

Heedfulness, attentiveness; caution.

figurative. Strict fidelity or faithfulness; conscientiousness; devotion to some principle. Also: an instance of this. Obsolete.

Observance of or adherence to prescribed forms, rules, etc. Also: a rule to be observed. Obsolete.

= punctuality, n. (in various senses).

Precise observance of rule or obligation; rigorousness in the performance of duty; scrupulousness. Now rare or merged in sense 3c.

The action of heed, v.; attention; care.

Steadfast commitment to a belief, practice, etc.; fidelity, devotion; (later also) strict or faithful observance of (a rule, promise, etc.). Also…