spearheads

/S P IH1 R HH EH0 D Z/
noun
  1. 1

    The pointed head, or end, of a spear.

  2. 2

    One who leads or initiates an activity (such as an attack or a campaign).

  3. 3

    The leading military unit in an attack.

  4. 4

    A player who initiates attacking moves.

verb
  1. 1

    To drive or campaign ardently for, as an effort, project, etc.

    โ€œHe spearheaded the entire project from day one.โ€

Source: https://en.wiktionary.org/wiki/spearhead, https://en.wiktionary.org/wiki/spearheads