Word · Frequency #3174
bound
边界；界限；限度
A boundary or limit, such as the edge of an area or the greatest possible extent.
- 1.
A boundary, the border which one must cross in order to enter or leave a territory.
边界,进入或离开领土必须跨越的界线
- 2.
A sizeable jump, great leap.
大跳跃,大飞跃
- 3.
a line determining the limits of an area
确定区域界限的线
- 4.
A value which is known to be greater or smaller than a given set of values.
已知大于或小于给定数值集合的值
- 5.
A spring from one foot to the other in dancing.
舞蹈中单脚换脚跳
- 6.
the line or plane indicating the limit or extent of something
指示某物界限或范围的线或面
- 7.
the greatest possible degree of something
某事物的最大可能程度
跳跃；跃起；界；上下限；边界,进入或离开领土必须跨越的界线；大跳跃,大飞跃；确定区域界限的线
In use
The river forms the natural bound between the two countries.
His ambition knows no bounds.
We must stay within the bounds of the law.
what he did was beyond the bounds of acceptable behavior
Connections
Collocations
- out of bounds
- 越界；超出允许范围
- Criticizing a colleague in public is out of bounds.当众批评同事是越界的行为。
- know no bounds
- 无止境；无限
- His curiosity knows no bounds.他的好奇心永无止境。
- by leaps and bounds
- 突飞猛进地；飞速地
- Her English improved by leaps and bounds after she moved to London.搬到伦敦后，她的英语进步飞快。
- within bounds
- 在允许范围内；适度地
- You can joke, but keep your comments within bounds.你可以开玩笑，但言辞要适度。
Idioms & figurative uses
- out of bounds
- 超出界限；不允许的The topic is out of bounds for this meeting.这个话题在本次会议讨论范围之外。
Learner notes
Memory Tip
bound 两义都记：它是 boundary（边界）的开头，又像 bounce 的跳跃；想象‘越过 bound 要 bound 一下’。
Context & Register
语域：mixed 常见场景：边境与领土描述、数学与统计中的界限、文学或舞蹈中的跳跃 bound 作名词时，主要含义为“边界/界限”和“跳跃”；“界限”（常用复数 bounds）多用于较正式或书面语境，如 within bounds；“跳跃”则常见于文学或描述性文字。日常口语中单独使用该名词的情况较少，通常用其他词替代。
Grammar Note
常以复数形式出现
Pronunciation & Spelling
这些词都以 -ound 结尾，并与 bound /baʊnd/ 押韵：found /faʊnd/、round /raʊnd/、sound /saʊnd/、ground /ɡraʊnd/、hound /haʊnd/、pound /paʊnd/。注意拼写相似的 bond /bɒnd/（美式常读 /bɑːnd/）并不押韵；wound 读作 /waʊnd/（wind 的过去式）时才与 bound 押韵，而名词 wound /wuːnd/ 不押韵。
High-value vocabulary
该词属于 Oxford 核心词汇，值得优先掌握常见搭配和句型。
Usage priority
Collins 词频等级为 3，建议结合例句记忆，而不是只背中文释义。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.