- Disharmony
- Dissension
- Friction
- Lack of agreement or harmony
- Lack of harmony
- Rumblings in the ranks
- Strife
- Friction-reducing substance
- Oil, e.g.
- Substance that reduces friction
- substance to reduce friction
- Lubricating.
- That which lubricates; specifically, a substance, as
oil, grease, plumbago, etc., used for reducing the friction of the
working parts of machinery.