120 entries under expression topic. ×

0
inexorable necessity(idiom, necessity)
0
inside track(noun, trouble, force, strain)
0
intestinal fortitude(noun, drive, power, strength)
0
involuntary servitude
0
iron necessity(idiom, necessity)
0
keep one's promise(idiom, observance)
0
keep one's word(idiom, observance)
0
legal responsibility(noun, responsibility, accountability)
0
line of business(noun, idiom, activity, thing)
0
make good(idiom, observance)
0
mental power(noun, drive, power, strength)
0
minding the store(noun, idiom, work, charge)
0
modus operandi(procedure, etiquette, rules)
0
never forget(idiom, gratitude)
0
observe a duty(idiom, duty)
0
observe an obligation(idiom, duty)
0
office function(noun, business, concern, interest)
0
out of pocket(idiom, outlay, expenditure, disbursement)
0
overflow with gratitude(idiom, gratitude)
0
perform a duty(idiom, duty)
10 years ago|20k views|share |citing 
APASmart Define. (2015). obligation thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/obligation/thesaurus/synonyms
ChicagoSmart Define. 2015. "obligation thesaurus" https://smartdefine.org/obligation/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, obligation thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/obligation/thesaurus/synonyms>.
MLASmart Define. "obligation thesaurus" 22 December 2015. Web. 24 September 2026. <https://smartdefine.org/obligation/thesaurus/synonyms>