Supreme Thunder (or Jupiter Thunder Crash in America) is Sailor Jupiter's primary attack. She gathers energy in the lightning rod in her tiara, and blasts it at any approaching enemy.
Supreme Thunder Dragon (Jupiter Thunder Dragon) is Jupiter's special attack in Sailor Moon R. She gathers energy in her tiara again, and the energy takes the form of a dragon, and flies off to attack the enemy.
Sparkling Wide Pressure (Jupiter Thunderclap Zap) is used for the R series on up. In this attack, Sailor Jupiter gathers energy in her hands and throws it as a discus of lightning.
Jupiter Oak Evolution is Jupiter's most powerful attack. She gathers energy in her tiara, and starts to twirl. Leaves and beams of energy start shooting forth, zapping the enemy.
Flower Hurricane is Jupiter's first attack, which sends roses whirling around the enemy, blinding him.
Thunder and Lightning Shower Down is one of Jupiter's first attacks. Lightning hits the rod in Jupiter's tiara, then barrels toward the enemy, totally frying him. This is the attack that killed Nephrite in the manga.
Jupiter Thunder is basically the same thing as Thunder and Lightning Shower Down.