Noun
the cardinal number that is the sum of four and one
one of five children born at the same time from the same pregnancy
a set of five similar things considered as a unit
Source: WordNetLegato on guitar is commonly associated with playing more notes within a beat than the stated timing, i.e., playing 5 (a quintuplet ) or 7 (a septuplet) notes against a quarter-note instead of the usual even number or triplet. Source: Internet
This is notated in exactly the same way that one would write if one were writing the first four quarter notes of five quintuplet quarter notes. Source: Internet