| ac(noun, electricity) |
| active |
| albatross(noun, difficulty, obstacle, obstruction, impediment) |
| amperes(noun, electricity) |
| amplifier(noun, electricity) |
| animosity(noun, trouble, dispute, conflict, disagreement) |
| anode(noun, electricity) |
| antagonism(noun, trouble, dispute, conflict, disagreement) |
| backplane(noun, electricity) |
| bad blood(noun, expression, trouble, dispute, conflict) |
| bad feeling(noun, expression, trouble, dispute, conflict) |
| bafflement(noun, hindrance) |
| baggage(noun, difficulty, obstacle, obstruction, impediment) |
| ball and chain(noun, expression, idiom, difficulty, obstacle) |
| bar(noun, difficulty, obstacle, obstruction, impediment) |
| battle(noun, support, fight, opposition, resistance) |
| bickering(noun, trouble, dispute, conflict, disagreement) |
| blockade(noun, hindrance) |
| blockage(noun, hindrance) |
| blocking(noun, support, fight, conflict, opposition) |