Body and substance with

体 primarily means “body” or “the shape or structure of something”. It is an important character used not only to refer to the physical body but also to the essence or structure of things, and even to the idea of acquiring or mastering something.

Etymology

This kanji is built from 亻 (person) and 本 (root, base, origin). These invoke imagery of the person together with the base or central structure that supports them, bringing attention to the body’s main frame and essential substance.

Bodies

(Body)

身体(しんたい) means the body or physical body. It is a formal and general word for the human body as a whole.

It combines 身 (body) with 体 (body or substance) to show the physical body.

Manga panel from ご注文はうさぎですか? showing example of Receiving an embrace with 〜れる.
ご注文はうさぎですか? » Volume 1 » Page 24

Tippy is glad that Cocoa is around to be friends with Chino, but it’s a problem for him.

ティッピー:
「だがその勝手(かって)に抱(だ)きつかれると困(こま)るというか」
“But being hugged like that without warning is a bit troubling.”
「わしもほら今(いま)はこんな身体(からだ)だけど一応(いちおう)アレだし…」
“I may have a body like this now, but I'm still, you know...”
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(Dead body)

死体(したい) refers to the body of a dead person or animal. It is blunt and clinical, so it can sound cold when used for a person.

It combines 死 (dead) with 体 (body) to show a dead body.

Manga panel from 名探偵コナン showing example of Furthermore, this room is too warm with さらに〜.
名探偵コナン » Volume 1 » Page 139

Upon walking in on a murder scene, Conan goes right to work making observations about the blood-covered body and its surroundings. He notes how the room is torn apart save for one upright chair beside the deceased.

コナン:
「さらに、暑(あつ)すぎるこの部屋(へや)…」
“Furthermore, this room is too warm...”
「死亡推定時刻(しぼうすいていじこく)をくるわせるためなのか…」
“Is it to confuse the estimated time of death...?”
「いや、まてよ… それなら死体(したい)を水(みず)につけた方(ほう)が…」
“No, wait... If that's the case, it would be better to put the corpse in water...”
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(Physical education)

体育(たいいく) means physical education, exercise taught to develop fitness and physical skills.

It combines 体 (body) with 育 (raise/develop) to show the cultivation of the body.

Manga panel from ホリミヤ showing example of I'd totally die in the heat with 〜じゃう.
ホリミヤ » Volume 1 » Page 45

On a summer day, Hori and her friends in class can’t ignore the heat.

由紀(ゆき):
「外(そと)の暑(あつ)さってなんなの…? クーラーないと死(し)んじゃうって…っ」
“What's with this heat outside...? I'd totally die without the AC...”
「この日差(ひざ)しのなか体育(たいいく)とか絶対(ぜったい)無理(むり)だわ…」
“There's no way I can do PE in this blazing sun...”
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(Dismantling)

解体(かいたい) means taking something apart. It can refer to dismantling a machine, demolishing a building, disbanding an organization, or dissecting a body.

It combines 解 (separate) with 体 (body) to show a body being taken apart.

Manga panel from 名探偵コナン showing example of Demolishing the movie theater with 解体.
名探偵コナン » Volume 23 » Page 12

Conan and his friends go to the theater to see a movie. There, they discover this is the last day before the theater closes.

コナン:
「そっか!それで場内(じょうない)にロープとかが落(お)ちてたんだね!」
“Oh, I see! That's why there were ropes and stuff lying around the venue!”
オーナー:
「スマンのう… 業者(ぎょうしゃ)の者(もの)が上映(じょうえい)時間(じかん)キリキリまで解体(かいたい)作業(さぎょう)の準備(じゅんび)をしとったから…」
“Sorry about that... The contractor's crew was rushing to get the dismantling ready right up until showtime...”
スタッフ:
「まったく… 明日(あした)まで待(ま)ってくれればいいものを…」
“Honestly... They could've at least waited until tomorrow...”
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Conflict and Force

(Physical strength)

体力(たいりょく) means physical strength, stamina, or endurance.

It combines 体 (body) with 力 (power) to show the power of the body.

Manga panel from よつばと! showing example of Declining stamina with 低下.
よつばと! » Volume 1 » Page 13

Jumbo helps his friend Yousuke move into his new house. After unboxing things, Yousuke stops for a break.

葉介(ようすけ):
「なんか俺(おれ) 体力(たいりょく)低下(ていか)してんなあ… 手(て)がふるふる…」
“Man, I feel like my stamina is dropping... My hands are shaking...”
ジャンボ:
「おまえさ 近所(きんじょ)にあいさつで配(くば)る粗品(そしな)とか用意(ようい)してるか?」
“Hey, are you preparing any little gifts to hand out to your neighbors when you go around saying hello?”
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