Zycad rhymes with:
ecad, amistad, amstrad, armstrad, autorad, branstad, caridad, compuadd, comrade, doodad, dyad, ecad, ekblad, ershad, galahad, grandad, halmstad, hyderabad, ironclad, kaliningrad, keypad, kjenstad, kvistad, leningrad, magistad, messagepad, mirsad, mongstad, nomad, novogrod, olympiad, semiclad, sinbad, soledad, stalingrad, thinkpad, triad, trinidad, unctad, undergrad, visegrad, volgograd
Zycad sounds like:
zada, zadeh, zagat, zagged, zaid, zasada, zawada, zayed, zazueta, zed, zeit, zest, zeta, ziad, zig-zagged, zigzagged, zita, zito, ziyad, zody, zoete, zygote