■ cardinal number
1》 equivalent to the product of two and two; one more than three, or six less than ten; 4. (Roman numeral: iv or IV , archaic iiii or IIII .)
2》 Cricket a hit that reaches the boundary after first striking the ground, scoring ~ runs.
3》 a ~-oared rowing boat or its crew.
↘( ~s ) a race for such boats.
~fold adjective & adverb
OE fēower , of Gmc origin.