iso- /ī-sō-, -so-/, also is- /īs-/

1. Signifying equal
2. Denoting an isomeric substance, as in iso-ocˈtane one of the isomers of normal octane

• speak volumes
• speal
• speals
• spean
• speaned
• speaning
• speans
• spear
• spear carrier
• spear carriers
• speared
• spearfish
• spearfishes
• spear grass
• spear gun
• spear guns
• spearhead
• spearheaded
• spearheading
• spearheads
• spearier
• speariest
• spearing
• spearman
• spearmen