contingency C2+

/kənˈtɪndʒənsi/ a future event that is possible but not certain; a provision for such

contingent C2+

/kənˈtɪndʒənt/ dependent on circumstances not yet certain

contamination C2+

/kənˌtæməˈneɪʃən/ the act or state of making something impure or polluted

contiguous C2+

/kənˈtɪɡjuəs/ sharing a common border; touching or adjacent

contaminant C2+

/kənˈtæmənənt/ a substance that pollutes or makes something impure