Premise: Spinto (from Italian, "pushed") is a vocal term used to characterize a soprano or tenor voice of a weight between lyric and dramatic that is capable of handling large musical climaxes in opera at moderate intervals. (Sometimes the terms "lirico-spinto " or "jugendlich-dramatisch " are used to denote this category of voice.)
Hypothesis: Spinto could mean another thing other than a soprano or tenor voice of a weight between lyric and dramatic that is capable of handling large musical climaxes in opera at moderate intervals.