Is it a straight if let's say you have a 3 and a 4 and down on the table are a K an A and a 2?
No. Straights are from
T is 10 in a useful representation of just 1 character). A special lowest case exists as
KA234 as a valid straight comes from a wrong assumption from a popular dice game, although such assumption is also wrong in that game, but also widely spread.