とくい得意tokui
1.

A state of feeling satisfied and fulfilled, especially when outcomes align with one's desires or expectations.

2.

A demeanor characterized by pride or self-satisfaction, often displayed after achieving success or recognition.

3.

A level of proficiency or skill in a particular area, accompanied by a sense of confidence in one's abilities to perform or create.

4.

A regular customer or client who frequently purchases goods or services from a particular shop, indicating a strong business relationship.

Example:

彼は彼の洞察力を得意に思っている。

とくいぶんや得意分野tokuibun'ya
1.

A specific area of knowledge or skill in which an individual excels and has significant experience.

2.

The subject or topic in which a person feels most confident and demonstrates superior ability compared to other fields.

3.

A domain of specialized understanding or talent that one can leverage for professional or personal success.

とくい得意tokuigeとくいげ得意気tokuige
1.

A facial expression or demeanor that conveys a sense of confidence or self-satisfaction, often characterized by a smile or an air of superiority.

2.

A state of being where one feels a heightened sense of accomplishment or happiness about one's own abilities or achievements.

Example:

彼女は宝石を得意げに見せびらかした。

とくいさき得意先tokuisaki
1.

A customer who consistently purchases goods and services, often forming a regular business relationship with a supplier.

2.

A valued patron whose loyalty ensures recurring transactions, indicating a reliable source of revenue for a business.

3.

An established client with whom a business typically engages in ongoing commercial dealings, contributing to its success.

4.

A favored customer that a business prioritizes due to their frequent and sustained support.

Example:

その会社は将来お得意先になりそうな人々をパーティーに招待した。

ふとくい不得意futokui
1.

Describes a subject or skill in which a person lacks proficiency or confidence, often indicating difficulty in performance or understanding.

2.

Refers to an area of knowledge or ability that does not come easily to someone, suggesting a lack of talent or aptitude compared to other subjects or skills.

3.

Indicates a feeling of discomfort or challenge when faced with certain tasks or subjects, highlighting a preference for areas where one feels more competent.

Example:

概して、日本の人々は外国語が不得意だ。