熱い【あつい】
hot (to the touch), passionate (feelings, etc.), ardent, hot (e.g. gaze), hot (e.g. temper), zealous, enthusiastic, fired up, intense, severe, extreme, hot (topic), of interest
情熱【じょうねつ】
passion, enthusiasm, zeal
熱帯【ねったい】
tropics
熱気【ねっき】
heat, hot air, enthusiasm, excitement, fervour, fervor, heated atmosphere, fever
熱意【ねつい】
zeal, enthusiasm, ardor, ardour
熱戦【ねっせん】
fierce fight, close contest
過熱【かねつ】
superheating, overheating
熱狂【ねっきょう】
wild enthusiasm, being crazy about
熱烈【ねつれつ】
ardent, passionate, vehement
加熱【かねつ】
heating, application of heat
断熱【だんねつ】
insulation
高熱【こうねつ】
high fever, pyro-
発熱【はつねつ】
generation of heat, (attack of) fever, pyrexia
熱帯魚【ねったいぎょ】
tropical fish
熱湯【ねっとう】
boiling water
熱弁【ねつべん】
impassioned speech, fervent speech
熱風【ねっぷう】
hot wind
白熱【はくねつ】
white heat, incandescence, (emitting) white light, white glow, becoming excited, getting heated (e.g. of a discussion), reaching a climax
熱する【ねっする】
to heat, to heat up, to get excited, to get worked up, to get fired up
熱帯夜【ねったいや】
sultry night, sweltering night, night in which temperature doesn't fall below 25 degrees C
