13-letter words containing a, b, u, s, i
- unsuitability — the quality of being inappropriate, unsuitable, or unfit
- unsustainable — not sustainable; not to be supported, maintained, upheld, or corroborated.
- unsustainably — not sustainable; not to be supported, maintained, upheld, or corroborated.
- untarnishable — to dull the luster of (a metallic surface), especially by oxidation; discolor.
- unwhistleable — incapable of being whistled
- urban studies — the various disciplines associated with the study of urban areas, including urban planning, urban economics and urban architecture
- visual binary — a binary star having components that are sufficiently separated to be resolved by a telescope.
- water biscuit — a crackerlike biscuit prepared from flour and water.
- west columbia — a town in central South Carolina.