Kahan's rhymes with:
han's, hons, afrikaans, alphonse, azerbaijan's, batons, bonn's, brons, bronze, come-ons, cons, don's, dons, donze, fons, fonz, goings-ons, han's, hons, hwan's, jahns, john's, johns, jon's, kahn's, kazakhstan's, khan's, konz, lat-lons, lian's, livan's, lons, milan's, nithuekan's, omans, ons, pons, put-ons, ron's, run-ons, saint-saens, salons, schons, sohns, sons', spawns, st-johns, swann's, swans, taiwan's, teheran's, teherans, tehran's, tehrans, try-ons, vons, yuan's, yvonne's
Kahan's sounds like:
kaczynski, kaczynski's, kagins, kahn's, kahng, kainz, kamakau, kamakau's, kamehameha's, kamens, kamensky, kamikaze, kamins, kaminski, kaminsky, kamke, kanagy, kanak, kanazawa, kane's, kaneko, kang, kangas, kanghua, kangyo, kaniewski, kanis, kanji, kanka, kankakee, kankaku, kanouse, kansai, kansas, kansas', kansas's, kanz, kanzi, kaohsiung, kasinga, kasinga's, kassing, kaunakakai, kayaking, kean's, keimig, kemmons, ken's, kenagy, kenichi, kenji, kennesaw, kenning, kenosha, kenya's, kenyans, kenzie, kenzo, kessenich, keying, keynes, kganakga, khan's, khomeini's, kicking, kieschnick, kiggins, kim's, kimche, kimchee, kimchi, kimco, kimes, kimmich, kimmins, kimmons, kimonos, kims, kimsey, kimzey, kin's, kinch, kincy, kines, king, king's, kings, kings', kingsey, kingsway, kinko, kinko's, kinks, kinky, kinnick, kinnock, kinnock's, kinsey, kinshasa, kinzey, kinzie, kissing, kiwanis, kmiec, kmiecik, knaack, knaak, knack, knacks, knaggs, knaus, knauss, kneece, kneeing, knees, kness, knick, knicks, knicks', knies, kniess, knigge, kniss, knoch, knoche, knock, knocks, knogo, knoke, knous, knouse, knowing, knowns, knows, knox, knox's, kochanek, kochanowski, kochanski, kocinski, koenig, koenigs, kohnke, kokan's, komag, komansky, kominek, konaga, kong, kong's, konica, konicek, konicki, konieczka, konig, koning, konishi, konwinski, konz, konzi, konzi's, koon's, koonce, koonig, kooning, koons, kosanke, koscinski, kosinski, kosmicki, kouns, kownacki, kozemchak, kozinski, kozminski, kuchinski, kuchinsky, kuchma's, kucinski, kuczynski, kuenzi, kuhnke, kuhns, kumagai, kunce, kunes, kunesh, kung, kunka, kuns, kunz, kunze, kuzminski, kuznicki, kwang, kwangju, kwanza, kwanzaa, kwasniewski, kwasnik, kwiecinski, kwok-shing, kwong, kynikos, kyong, kyoung, kyung