Actin rhymes with:
acton, prolactin, acton, becton, brockton, ecton, elkton, kruchten, lichten, nekton, pectin, picton, plankton, prolactin, stockton
Actin sounds like:
academe, academia, academy, accusation, accustom, accutane, acetone, acquisition, acquitaine, action, actodine, acton, agitation, agostini, agostino, agustin, akkadian, aquitaine, ashdown, ashton, assocation, association, asthma, astin, aston, auction, augustin, augustine, augustinian, augustyn, austen, austin, austine, auston, auxton, axtman, axton, azactam