御握り[onigiri] rice ball (often triangular, sometimes with a filling and wrapped in nori)
握らす[nigirasu] to let (someone) take hold of your hand
握り[nigiri] grasping
握り屋[nigiriya] miser
握りずし[nigirizushi] nigirizushi

握り潰し[nigiritsubushi] shelving
握りしめる[nigirishimeru] to grasp tightly
握る[nigiru] to clasp
握手[akushu] handshake
握斧[akufu] hand-axe

握鮨[nigirizushi] nigirizushi
稲荷鮨[inarizushi] sushi wrapped in fried tofu
五目鮨[gomokuzushi] sushi with several ingredients mixed in or sprinkled on top
江戸前鮨[edomaezushi] Edo-style sushi (usu. nigirizushi)
散らし鮨[chirashizushi] sushi rice in a box or bowl with a variety of ingredients sprinkled on top

手巻鮨[temakizushi] hand-rolled sushi, usually cone-shaped
鮨飯[sushimeshi] rice seasoned with vinegar, sugar and salt, used for preparing sushi
鮨詰[sushizume] jam-packed
巻き鮨[makizushi] makizushi