Boundaries and limits with

限 means “limit”, “boundary”, or “scope”. It is used in words establishing standards or defining limits.

Etymology

This kanji isa phono-semantic compound comprised of 阝 / 阜 (mound, embankment) as the semantic component and 艮 as the phonetic component (ゲン).

These invoke imagery of reaching the edge of an embankment and being forced to stop there.

Boundaries

(Limit)

限界(げんかい) means the limit or boundary beyond which something cannot go.

It combines 限 (limit) with 界 (boundary) to show a boundary line.

Example 1 of 3: At one's limit with 限界
Example 1 of 3
Manga panel from あしたは土曜日 showing example of At one's limit with 限界.
あしたは土曜日 » Volume 秋・冬 » Page 16

Mina wants to hurry and eat her lunch, as she’s very hungry. Yukari reminders her they still have one more class first.

ミナ:
「もう限界(げんかい)だよ!こんなんじゃ次(つぎ)の授業(じゅぎょう)、集中(しゅうちゅう)できないよー。」
“I'm already at my limit! As things are, come next class I won't be able to concentrate.”
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Example 2 of 3: Being at my limit is no good with あかん
Example 2 of 3
Manga panel from 名探偵コナン showing example of Being at my limit is no good with あかん.
名探偵コナン » Volume 12 » Page 125

At a special event, the expected host doesn’t show for dinner. After finishing their meals, the guests continue to wait until past midnight. As most guests decide to retire to their rooms for the night, Heiji finds himself yawning.

平次(へいじ):
「あかんオレももう限界(げんかい)や…」
“No good, I'm also already at my limit...”
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Example 3 of 3: The limit of teamwork with 限界
Example 3 of 3
Manga panel from ARIA The MASTERPIECE showing example of The limit of teamwork with 限界.
ARIA The MASTERPIECE » Volume 4 » Page 275

On a snowy day, Alicia starts making a snowball. As it gets bigger, Akari joins in. They continue to roll the snowball until it grows too big for them to keep pushing. At that moment, a random person passing by notices their effort.

灯里(あかり):
「アリシアさん… 二人(ふたり)の力(ちから)ではこれが限界(げんかい)かと」
“Alicia... This is the limit of what we can do together.”
男(おとこ):
「おおっ 大(おお)きいな」
“Oh! That's a big one.”
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Restrictions and Controls

(Limitation)

限定(げんてい) means limiting something to a particular scope, quantity, group, or condition.

It combines 限 (limit) with 定 (fix) to show something fixed within clear bounds.

Example 1 of 2: Limited edition with 限定
Example 1 of 2
Manga panel from 俺物語!! showing example of Limited edition with 限定.
俺物語!! » Volume 6 » Page 103

Takeo and Rinko meet up after school and stop somewhere for a drink and to chat. Rinko brings up February 14th, which is right around the corner.

凛子(りんこ):
「もうすぐバレンタインだから限定(げんてい)チョコいっぱい出(で)てるよねー」
“Since it's almost Valentine's, a lot of limited edition chocolates have come out.”
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Example 2 of 2: Seasonal exclusive product with 限定
Example 2 of 2
Manga panel from からかい上手の高木さん showing example of Seasonal exclusive product with 限定.
からかい上手の高木さん » Volume 3 » Page 136

Mina stops by a local convenience store to buy a seasonal ice cream.

ミナ:
「あった!秋(あき)限定(げんてい)焼(や)きいもアイスー!!」
“They have it! The autumn-exclusive baked sweet potato ice cream!”
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(Admission restriction)

入場制限(にゅうじょうせいげん) means an admission restriction or limit on the number of people allowed to enter a venue.

It combines 入場 (admission) with 制限 (restriction) to show a limit on entry to a venue.

Manga panel from 俺物語!! showing example of Limited amusement park admission with 入場制限.
俺物語!! » Volume 4 » Page 50

Takeo and his friends board the train bound for the amusement park, MM Land.

凛子(りんこ):
「すっごい人(ひと)だね。みんなMMランド行(い)くのかな」
“There's a lot of people here. I wonder if everyone's going to MM Land.”
隼人(はやと):
「連休(れんきゅう)だから混(こ)むよねー」
“It's a long holiday, so it'll be crowded.”
愛(あい):
「入場(にゅうじょう)制限(せいげん)とかなんないといーけど」
“I hope they don't restrict admission or anything.”
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Time Boundaries

(Curfew)

門限(もんげん) means a curfew, the time by which someone must return or a gate must close.

It combines 門 (gate) with 限 (limit) to show the time limit of the gate.

Manga panel from 三ツ星カラーズ showing example of Case closed at curfew time with 門限.
三ツ星カラーズ » Volume 4 » Page 78

After finding evidence of a UFO encounter, the group Colors sets out to find aliens. The case is cut short when the 5PM bell chimes, signalling that the young trio has to head home for the day.

斎藤(さいとう):
「ああ門限(もんげん)か。ゲームオーバーだな」
“Ah, curfew time? I suppose it's Game Over.”
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(Deadline)

期限(きげん) means a deadline or the period during which something remains valid.

It combines 期 (set time) with 限 (limit) to show a fixed time boundary or deadline.

Example 1 of 2: Challenge deadline with 期限
Example 1 of 2
Manga panel from からかい上手の高木さん showing example of Challenge deadline with 期限.
からかい上手の高木さん » Volume 4 » Page 49

During their walk home after school, Takagi presents Nishikata with an impossible challenge. When he pushes back against it, she comes up with a new challenge, which Nishikata loses. As the two reach the point where they part ways, Takagi stops for a moment.

高木(たかぎ):
「あの勝負(しょうぶ)期限(きげん)ないからね。」
“There's no deadline for that challenge.”
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Example 2 of 2: Sell-by date with 期限
Example 2 of 2
Manga panel from 三ツ星カラーズ showing example of Sell-by date with 期限.
三ツ星カラーズ » Volume 2 » Page 102

The confectionery shop owner is out shopping when the trio Colors appears.

おかし屋(や):
「カラーズちゃんあとでうち寄(よ)って期限(きげん)近(ちか)いおかし持(も)ってってよ」
“Colors, stop by my place later and take some of these snacks that are near their sell-by date.”
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(Timing device)

時限装置(じげんそうち) means a timing device set to operate at a preset time or after a fixed delay.

It combines 時限 (preset time) with 装置 (device) to show a device controlled by a set time.

Manga panel from 名探偵コナン showing example of Power switch pulled by a timing device with 時限装置.
名探偵コナン » Volume 3 » Page 79

Two murders on a yacht leave the passengers on edge. A blackout occurs followed by another attempted murder. This should narrow down the list of suspects to those who weren’t gathered in the dining room. However, Detective Kogoro finds the power switch had a weight tied to it by rope, with a candle having burned the rope to drop the weight. This allowed the power to be turned off unattended.

小五郎(こごろう):
「一種(いっしゅ)の時限(じげん)装置(そうち)です」
“It's a timing device of sorts.”
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