Syncom rhymes with:
incom, francom, incom, acecomm, beckom, belgacom, careercom, ficom, francom, genicom, globcom, incom, intelcom, metcom, micom, millicom, neukom, omnicom, opcom, secom, sodecom, stratacom, telecom, telekom, verticom, viacom, wascom
Syncom sounds like:
samsom, samson, san-juan, sang-gon, sanguine, sanjuan, sansom, sanson, sansone, sanzone, schenken, semicon, senseney, shamanism, shangkun, shanken, shankman, shawinigan, shenanigan, shenkman, shenzhen, siemsen, simenson, simison, simkin, simonsen, simonson, simonsson, simson, singin', skonieczny, snecma, sonnenschein, sunken, sunshine, sunshiny, swanigan, swanson, swensen, swenson, swinson, syngman