Definition of supercommittee in English:
supercommittee
nounˈsuːpəkəmɪtiˈsupərkəˌmɪdi
A committee responsible for coordinating or overseeing the activities of, and typically composed of members of, two or more subordinate committees or other bodies.
the supercommittee failed to come up with an alternative
Definition of supercommittee in US English:
supercommittee
nounˈso͞opərkəˌmidēˈsupərkəˌmɪdi
A committee responsible for coordinating or overseeing the activities of, and typically composed of members of, two or more subordinate committees or other bodies.
a supercommittee composed of members of Congress couldn't strike an agreement on ways to cut the federal budget