B-flat major

any of the Old Spanish dialects during the Middle Ages / any of the southern European Romance languages during the Middle Ages in which the word for yes was si, particularly Italian dialects, by opposition to langue d'oc and langue d'oïl

plural of langue de si

so much so that

(informal) vividly

(informal) Ellipsis of comme si de rien n'était.

if … at all, assuming that, provided that, on the condition that

(informal) ... and more, if we get along; ... and more, if we hit it off; ... and more, if there's chemistry

(colloquial) maybe, perhaps

except, except that; although; but