堅魚[katsuo] skipjack tuna
堅い[katai] hard
堅果[kenka] nut
堅苦しい[katakurushii] formal
堅固[kengo] solid

堅持[kenji] holding on to
堅城[kenjou] strong fortress
堅陣[kenjin] stronghold
堅調[kenchou] bullish
堅忍[kennin] perseverance

雨混じりの雪[amemajirinoyuki] snow mingled with rain
花吹雪[hanafubuki] falling cherry blossoms
雪崩れる[nadareru] to slope
蛍雪の功[keisetsunokou] the fruit of diligent study
降雪[kousetsu] snowfall

豪雪[gousetsu] tremendous snowfall
細雪[sasameyuki] light snow fall
初雪[hatsuyuki] first snow (of season)
除雪[josetsu] snow removal
除雪車[josetsusha] snow-plow