na-adjective, noun
profit; advantage; benefit; gain
Used as a noun or な-adjective for something being beneficial, economical, or to one's advantage. Common in contrasts such as 損か得か and in expressions like 得をする.
まとめて買うと得だ。
It is cheaper if you buy them in bulk.
その提案を受けても、こちらに得はない。
Even if we accept that proposal, there is no benefit for us.
na-adjective, noun
rebirth in paradise; entering nirvana
Specialized Buddhist use referring to spiritual attainment such as rebirth in paradise or entering nirvana; not an everyday sense of 得.
仏教用語では、得は極楽に生まれることや涅槃に入ることを指す。
In Buddhist terminology, 得 refers to being reborn in paradise or entering nirvana.
The opposite idea: loss, disadvantage, or being bad value, as in 損か得か.
A more concrete or businesslike word for profit or benefit; 得 is often more about whether something is advantageous or worthwhile.
A very common polite/everyday form meaning 'good value' or 'a good deal', especially in shopping and advertising.
Usually means 'virtue' or 'moral merit'. It is noted as a rare alternate spelling for the advantage sense here, but 得 is normally clearer.
Sino-Japanese reading とく of 得, a character associated with obtaining or gaining. The Buddhist sense is a specialized technical use connected with spiritual attainment.