Related Clues:

• Some boxes, briefly
• Opp. of neg.
• Letter getters: Abbr.
• A battery terminal, briefly
• Bldgs. with boxes
• Neg.'s opposite
• On the plus side?: Abbr.
• Neg. opposite
• Neg. opp.
• Like some poles: Abbr.
• Battery terminal abbr.
• +, on a batt.
• +, for short
• Battery abbr.
• Like nos. above zero