Gatwick rhymes with:
bestwick, eastwick, hartwick, bailiwick, balliwick, barwick, bestwick, eastwick, elswick, fenwick, hardwick, hartwick, herwick, keswick, linwick, marwick, morowick, nadgwick, pickwick, sandwick, shandwick, smithwick, traywick
Gatwick sounds like:
gaddis, gads, gaetz, gaskets, gatch, gates, gates', gates's, gateway's, gateways, gatos, gattis, gattuso, gatx, gatz, gatza, gatzke, gaudioso, gaydos, gaydosh, gazdik, geddes, geddis, geitz, geodesic, geodesy, geotaxis, geotek, getaways, gets, gettis, getts, getty's, gettys, getz, ghattas, ghettoize, ghettos, ghitis, ghosts, gidwitz, gigot's, gittis, giudice, giudici, goat's, goates, goats, god's, goddess, goddesses, godek, godot's, gods, godsey, goedecke, goetsch, goettsch, goetz, goetze, goetzke, good's, goodies, goods, goody's, gotaas, gotch, gotcha, gothic, gotsch, gottis, gotts, gottsch, gotz, gtech, gtech's, guest's, guesthouse, guesthouses, guests, guests', guide's, guides, guidice, gusts, gustus, gutkowski, gutowski, guts, gutsy, gutwaks, gwozdz