(geometry) Euclidean distance - the distance between two points defined as the square root of the sum of the squares of the differences between the corresponding coordinates of the points; for example, in two-dimensional Euclidean geometry, the Euclidean distance between two points a = (aₓ, a_y) and b = (bₓ, b_y) is defined as:

a long-distance cross-country skiing race (such as at the Olympics)

metric space

scallion, green onion

committee chairman

Changsha (a prefecture-level city, the provincial capital of Hunan, in south-central China) / Changsha (a county of Changsha, Hunan, China)

(weaponry) a pike

a male given name

head doctor

abbot, abbess (superior or head of an abbey or monastery)