Brighten rhymes with:
breighton, brighton, breighton, brighton, criton, frighten, reitan, reiten, triton, breighton, brighton, criton, enlighten, frighten, guyton, heighten, iten, knighten, knighton, lighten, litan, reitan, reiten, tighten, titan, triton, whiten
Brighten sounds like:
bergstein, bergsten, berstein, bifurcation, boorstin, bragdon, braughton, braxton, breakdown, breighton, briggstone, brightman, brighton, brockton, brogden, brogdon, brookstone, broughton, broxton, burstein, burston