- an internal combustion engine with six cylinders in line.；a vehicle with a straight-six engine.
noun: straight-six, plural noun: straight-sixes
go straight down to the crossroad, turn left and go straight for six minutes . you can get to the MRT station.
...and the Commerce Department reported an unexpectedly large sixth straight drop in personal spending. He invited Democratic...
..., four, open the door 三、四，關上門， Five, six, pick up sticks 五、六，檢起棍子， Seven, eight, lay them straight 七、八，把它們放直， Nine, ten, begin again 九、十，一...