How to pronounce “spearhead”(noun) in English

So to be on the spearhead of that is amazing.

Michael and his band, Spearhead, are perhaps best known to San Franciscans and Bay Area natives in general, for their Power to the Peaceful Festival,

The youngest ever found was 10 when she died, and she was buried in iron armor with two spearheads, evidence that young children, boys and girls, were trained for battle.