A Dictionary of the Targumim, the Talmud Babli and Yerushalmi, and the Midrashic Literature, Volume I (1/3) by Marcus Jastrow
This dictionary is an absolute must for anyone learning Gemara or any other Aramaic works.
Not only is every possible definition given, Jastrow brings down numerous examples of the usage of each word, ensuring a firm grasp of each word's nuances.
A classic and still standard resource, Marcus Jastrow's monumental dictionary remains unique in that it covers both the Hebrew and Aramaic languages in the literature of the rabbinic period. This indispensable...
A Dictionary of the Targumim, the Talmud Babli and Yerushalmi, and the Midrashic Literature, Volume I (1/3) by Marcus Jastrow