| certainly | (adverb) definitely or positively (`sure' is sometimes used informally for `surely') | Synonyms: for certain, for sure, sure, sure as shooting, sure enough, surely |
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| downstairs | (adverb) on a floor below | Synonyms: below, down the stairs, on a lower floor |
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| entertainingly | (adverb) in an entertaining manner | - |
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| retail | (adverb) at a retail price | - |
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| staidly | (adverb) in a grave and sober manner | Synonyms: gravely, soberly |
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| unattainably | (adverb) in an unattainable manner or to an unattainable degree | Synonyms: unachievably |
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| uncertainly | (adverb) showing lack of certainty | - |
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| (adverb) in an unsteady manner | Synonyms: falteringly, unsteadily |
| upstairs | (adverb) on a floor above | Synonyms: on a higher floor, up the stairs |
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| (adverb) with respect to the mind | - |