Union
$$A \cup B =$$
{ artha, define, deliver, develop, dharma, discover, kama, moksha }
Symmetric Difference
$$A \ominus B =$$
{ artha, define, deliver, develop, dharma, discover, kama, moksha }
Difference
$$A - B =$$
{ artha, dharma, kama, moksha }
Difference
$$B - A =$$
{ define, deliver, develop, discover }
Cartesian Product
$$A \times B =$$
{ (artha, define),
(artha, deliver),
(artha, develop),
(artha, discover),
(dharma, define),
(dharma, deliver),
(dharma, develop),
(dharma, discover),
(kama, define),
(kama, deliver),
(kama, develop),
(kama, discover),
(moksha, define),
(moksha, deliver),
(moksha, develop),
(moksha, discover) }