"気" is used in various contexts to convey different meanings.For example,Emotion, atmosphere,Sensation,mood,Mind or c

to make one's mood or feelings bad.
★Please don't be offended.

気（き）を悪（わる）くする。
★気（き）を悪（わる）くしないでね。(before get to the main point)

It refers to situations where something said or done bothers or offends someone, causing them to feel uncomfortable or upset.
★I don’t like the way you say it.

気（き）に障（さわ）る
★その言（い）い方（かた）は気（き）に障（さわ）る。

refers to one's fighting spirit, determination, or enthusiasm. It can also denote the mental or emotional energy one puts into a task or situation. 
★I'll give it my all.

気合（きあ）い　
★気合（きあ）いを入（い）れて、頑張（がんば）ります。

気（き）が短（みじか）い
かれは　きがみじかいです。

patient, has a long-term perspective
★He is patient.
★A: I'll visit you someday.
★B: I'll be waiting (with no stress)

気（き）が長（なが）い
★彼は気(き）が長（なが）い人（ひと）だ。
A(in America):いつか、会（あ）いに行（い）きます。
B(in Japan):気長（きなが）に待（ま）っています。

being overly sensitive to small matters and having a cowardly disposition
★I couldn't say anything because I was coward.

気（き）が小（ちい）さい
★気（き）が小（ちい）さくて、何（なに）も言(い）えなかった。

translates to "to feel motivated" or "to be in the mood" for something.
A:Are you going for a drinking party tomorrow?
B:Umm Don't know, I'm not in the mood.

気(き）が乗（の）る
A:明日（あした）の飲み会（のみかい）行（い）く？
B:どうしようかなぁ。気（き）が乗（の）らないんだよね。
Verb +気（き）にならない
行く気にならない　I don't feel like going
食べる気にならない I don't feel like eating

Having something in mind and not willing to do or feeling good.

気（き）が重（おも）い
★明日（あした）テストがあるので、気（き）が重（おも）い
I feel weighed down by the test tomorrow

気（き）が進（すす）まない
★知（し）らない人（ひと）がいるところに行（い）くのは、気（き）が進（すす）まない。
I don't feel comfortable going to places where there are people I don't know.

It's similar to realizing or becoming conscious of something that was previously unnoticed or overlooked. It's commonly used in everyday conversation when you suddenly become aware of a fact

気（き）がつく
★誰（だれ）かが見（み）ているのに気（き）がついた。
I noticed that someone was watching me.
★彼はよく気がつく人だ。
He is quite perceptive"
★気が付いたら、もう夜（よる）でした。
Before I knew it, it was night.

It refers to a person who has a keen sense of situational awareness and can anticipate the needs or feelings of others

気（き）が利（き）く
★彼女（かのじょ）はとても、きがきく　人（ひと）です。
She is very astute person.
★わたしの友達（ともだち）はとても気が利いて、やさしいひとです。
My friend is a very thoughtful and kind person.

refers to having good chemistry or compatibility with someone. It expresses a feeling of getting along well with someone or having similar personalities or interests. 
★I met him and we hit it off.

気（き）が合（あ）う
★彼（かれ）とは会（あ）ってすぐに　気が合った。
★きがあわない人とは一緒（いっしょ）にいたくありません。
If i don't get along with someone, i don't want to be around them.

refers to someone who is easily distracted or has a wandering mind. It can also imply that someone has many interests
★You seem to have a lot of interests, liking this and that

気（き）が多（おお）い
★あれもこれも好きなんて気が多いなぁ

feel satisfied or to feel contented. It's often used to express that one's feelings or desires have been fulfilled.
★Did you say what you wanted to say and feel satisfied now?
★I’ ll do it until I satisfied.

気（き）が済（す）む
★言（い）いたいことを言（い）って、きがすみましたか？
★きがすむまでやってみます。

means to feel lighter emotionally or mentally. It refers to experiencing relief, relaxation, or a sense of ease after letting go of stress, worries, or burdens.
★I feel lighter after talking with my friend.

気（き）/気持（きも）ち/ が軽くなる
★友達（ともだち）と話（はな）して、気持（きも）ちが軽（かる）くなりました。

an expression used to convey a feeling of unease, nervousness, or being unable to relax due to worry or concern about something. It implies feeling restless or on edge.
★I'm worried about missing my train.

気（き）が気（き）じゃ（で）ない
★電車（でんしゃ）に乗（の）り遅（おく）れないかきがきじゃない。
★娘（むすめ）の帰（かえ）りか遅（おそ）いので、きがきじゃなかった。
I was so worried because my daughter was coming home late.

refers to something that causes concern or worry about someone. It's used to describe a matter or situation that weighs on one's mind, causing unease or anxiety.
★I'm worried about her health.

気（き）がかり
★かのじょの　けんこうが　きがかりだ。
★遠（とお）くに住（す）む家族（かぞく）が気（き）がかりです。
I'm concerned about my family who lives far away.

It's used when someone suspects or perceives something, but it turns out to be unfounded or a product of their own mind. It can be translated to English as "It's just my imagination" or "It's all in my head.

気のせい
★何（ない）か聞（き）こえたと思（おも）ったけど、のせいでした。
I thought I heard something, but it was just my imagination.

convey a subjective feeling or intuition about something. It implies a sense of personal belief or perception rather than objective evidence. 
★I have a feeling that I'll hear from that person.

気がする
★あの人（ひと）から連絡（れんらく）が来（く）るきがする。
★頭（あたま）が痛（いた）いきがする。
★I feel like I have a headache.

to care about" or "to mind" in English. It's used to express the idea of being concerned about something or someone. 
★She has been worrying about the result of the interview.

気にする
★かのじょは、面接（めんせつ）の結果（けっか）をずっと　気にしている。
体重（たいじゅう）を気にしすぎるのはよくない。
It's not good to be too concerned about weight.

It expresses a state of having interest or concern about someone or something unconsciously.
★I can't stop thinking about him.
★I'm curious about the new café.

気になる
★あの人のことが気になる。
★最近できたカフェが気になってるんだよね。

to be careful" or to pay attention
★Be careful because the road is frozen
★Itterasshai！ be careful.
★I'm being careful not to misspell

気をつける
★道路（どうろ）が凍（こお）っているから、気（き）をつけて。
When someone leaving
★いってらっしゃい！気（き）をつけてね。
★スペルを間違（まちが）えないように気をつけています。