Walnut rhymes with:
hazelnut, chesnut, chestnut, coconut, donut, doughnut, groundnut, hazelnut, hudnut, anthrobot, chesnut, chestnut, clearcut, coconut, donut, doughnut, fingerhut, groundnut, haircut, hazelnut, hudnut, scuttlebutt, seragut, shortcut, steingut, supercut, taxcut, undercut, wackenhut
Walnut sounds like:
walenta, walmond, wayland, weiland, welland, weyland, wheeland, wieland, wiland, willamette, willmott, wilmet, wilmeth, wilmette, wilmot, wilmoth, wilmott, wilmouth, wilmut, wohlwend, wyland