A feeling of satisfaction, pride, or triumph about oneself or one's accomplishments.
試験に合格して彼はとても得意そうだった。
He looked very pleased with himself after passing the exam.
得意げに仕事の成果を同僚に見せた。
He proudly showed his work results to his colleagues.
あなたが得意になる必要はないよ。謙虚でいてください。
You don't need to be smug. Please stay humble.
One's strong point or specialty; something a person is good at (one's forte).
私は数学が得意だが、英語は苦手だ。
I'm good at math, but I'm weak at English.
彼女の得意料理は煮込み料理だ。
Her specialty dish is simmered stews.
面接では自分の得意分野を具体的に話したほうがいい。
In interviews, it's better to talk specifically about your strengths.
A regular customer or client in business contexts (a company’s regular client).
当社は長年の得意先を大切にしている。
Our company values its long-term clients.
新製品の説明を得意先に行った。
We presented the new product to our regular clients.