Synonyms of promise
1 guaranteeDictionary • They promised they would deliver it on Friday.
guarantee • We guarantee to refund your money if you are not delighted with your purchase.
pledge • I pledge that by next year we will have the problem solved.
vow • She vowed that some day she would return to live in France.
swear • Alan swore that he would do everything in his power to help us.
contract • He has contracted to lease part of the collection to a museum in Japan.
assure • Last night's victory has assured their promotion.
undertake • He undertook to edit the text himself.
warrant • The ship owner must warrant that his vessel is seaworthy.
plight (old-fashioned) • He got down on bended knee and plighted his troth.
stipulate • International rules stipulate the number of foreign entrants.
take an oath
give an undertaking to
cross your heart
give your word
2 seem likely • The seminar promises to be most instructive.
show signs of
augur • Already there were problems. It didn't augur well.
betoken • His demeanour betokened embarrassment at his prosperity.
lead you to expect
hold out hopes of
give hope of
hold a probability of
1 guaranteeDictionary • If you make a promise, you should keep it.
guarantee • We can give no guarantee that their demands will be met.
word • He simply cannot be trusted to keep his word.
bond • I'm not about to betray my bond with my brother.
vow • Most people still take their marriage vows seriously.
commitment • We made a commitment to keep working together.
pledge • a pledge to step up cooperation between the states
undertaking • British Coal gave an undertaking that it was maintaining the pits.
assurance • an assurance that other forces will not move into the territory
compact • The Pilgrims signed a democratic compact aboard the Mayflower.
oath • a solemn oath by members to help each other
covenant • the United Nations covenant on civil and political rights
word of honour
2 potentialDictionary • He first showed promise as an athlete in grade school.
potential • The boy has potential.
ability • No one had faith in his ability to do the job.
talent • Both her children have a talent for music.
capacity • Our capacity for giving care, love and attention is limited.
capability • These tasks are far beyond her capabilities.
flair • She has a flair for languages.
aptitude • He discovered an aptitude for working in accounts.
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abilityYour ability to do something is the fact that you can do it.
• No one had faith in his ability to do the job.
aptitudeSomeone's aptitude for a particular kind of work or activity is their ability to learn it quickly and to do it well.
• He discovered an aptitude for working in accounts.
assuranceIf you give someone an assurance that something is true or will happen, you say that it is definitely true or will definitely happen, in order to make them feel less worried.
• an assurance that other forces will not move into the territory
Thesaurus for promise from the Collins English Thesaurus
to give an assurance of (something to someone); undertake (to do something) in the future