| debt | (noun) an obligation to pay or do something | - |
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| (noun) money or goods or services owed by one person to another | - |
| (noun) the state of owing something (especially money) | - |
| doubt | (noun) uncertainty about the truth or factuality or existence of something | Synonyms: doubtfulness, dubiousness, question |
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| (noun) the state of being unsure of something | Synonyms: doubtfulness, dubiety, dubiousness, incertitude, uncertainty |
| (verb) consider unlikely | - |
| (verb) lack confidence in | - |
| redoubt | (noun) an entrenched stronghold or refuge | - |
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| (noun) (military) a temporary or supplementary fortification; typically square or polygonal without flanking defenses | - |