[spear.head] n (14c) 1: the sharp-pointed head of a spear
2: a leading element, force, or influence in an undertaking or development
[2]spearhead vt (1937): to serve as leader or leading element of
[spear.head] n (14c) 1: the sharp-pointed head of a spear
2: a leading element, force, or influence in an undertaking or development
[2]spearhead vt (1937): to serve as leader or leading element of
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012