I should say so!, certainlyCollocations, of course, most assuredly(formal), no doubt about it, and how!, indeedCollocations, that's for sure!(informal), you're telling me!(slang), you're not joking!(informal), you're not kidding!(informal), no kidding!(informal), I should cocoa!(UK, dated, regional, slang), undoubtedlyCollocations, sureCollocations(informal), naturallyCollocations, by all means
firstCollocations, preferablyCollocations, sooner, by choice, much sooner, just as soon, more willingly, willinglyCollocations, voluntarily, gladly, more readily, readilyCollocations, as a matter of choice, in preference, insteadCollocations
Sense: Adverb: to be precise
Synonyms:
to be precise, to be exact, more to the point, more precisely, more accurately
Sense: Adverb: on the contrary
Synonyms:
on the contrary, converselyCollocations, quite the contrary, quite the reverse, quite the opposite, insteadCollocations, in fact
Sense: Conjunction: instead of - followed by 'than'
Synonyms:
instead of, as opposed to, in place of, in lieu of, as an alternative to, sooner than(dated)