go for a run
表示“去跑步”，通常指为了锻炼而跑步。run 在这里是名词，指“奔跑的动作或一段时间”。
I go for a run every morning.
我每天早上都去跑步。
一连串；连续（期）；跑一趟；短途旅行；逃跑；逃离；围栏；跑道；轨道；路径；路线；走向
An act or instance of running.
奔跑的动作或实例,即快速移动双脚。
Act or instance of running, of moving rapidly using the feet.
匆忙赶赴(某地)的动作或实例(不一定是步行)；短途差事,行程。
Act or instance of hurrying (to or from a place) (not necessarily on foot); dash or errand, trip.
愉快的旅行
A pleasure trip.
逃跑,逃亡的实例或时期
Flight, instance or period of fleeing.
鱼类的迁徙
Migration of fish.
为产卵而迁徙或溯河而上的鱼群
A group of fish that migrate, or ascend a river for the purpose of spawning.
用于移动的字面或比喻路径或路线
A literal or figurative path or course for movement relating to:
不受限制的使用。仅用于“have the run of”
Unrestricted use. Only used in have the run of.
动物的围栏；供移动的轨道或路径
An enclosure for an animal; a track or path along which something can travel.
流行状态；流通；受欢迎
State of being current; currency; popularity.
连续或顺序的事物
Something continuous or sequential.
液体流动；泄漏
A flow of liquid; a leak.
比走路快的步伐
A quick pace, faster than a walk.
银行或其他金融机构的突然大量提款
A sudden series of demands on a bank or other financial institution, especially characterised by great withdrawals.
对某物的突然大量需求
Any sudden large demand for something.
各种水平的尺寸或表面
Various horizontal dimensions or surfaces
标准或普通的群体或类别
A standard or unexceptional group or category.
在体育运动中
In sports:
钻井中钻头钻进的距离
The distance drilled with a bit, in oil drilling.
针织物中脱线的线,特别是尼龙袜中的
A line of knit stitches that have unravelled, particularly in a nylon stocking.
船体水下部分从开始向上和向内弯曲的船尾
The stern of the underwater body of a ship from where it begins to curve upward and inward.
漂移的水平距离,由矿主许可或地层性质决定；矿脉或其他物质的走向
The horizontal distance to which a drift may be carried, either by licence of the proprietor of a mine or by the nature of the formation; also, the direction which a vein of ore or other substance takes.
一副或一套磨盘。
A pair or set of millstones.
跑步时的步态；跑姿。
One’s gait while running; the way one runs.
She won the 100-meter run in record time.
她以创纪录的时间赢得了100米赛跑。
用法提示：这里 'run' 作为名词，表示一场跑步比赛。
The marathon is a long-distance run that requires endurance.
马拉松是一项需要耐力的长距离跑步比赛。
用法提示：这里 'run' 作为名词，指长跑比赛。
He participated in a charity run last weekend.
上周末他参加了一场慈善跑步活动。
用法提示：这里 'run' 作为名词，指一项跑步活动。
表示“去跑步”，通常指为了锻炼而跑步。run 在这里是名词，指“奔跑的动作或一段时间”。
I go for a run every morning.
我每天早上都去跑步。
表示“一连串、一系列”，常用于描述连续发生的事物，如 a run of bad luck（一连串的厄运）。
The team had a run of wins.
那支球队经历了一连串的胜利。
固定表达，意为“可以自由使用某处”，run 作名词表示“自由使用权”。通常用于 have the run of a place。
The children have the run of the garden.
孩子们可以自由使用花园。
grammar · medium
易错句子I went for run in the park.
正确表达I went for a run in the park.
作名词表示“慢跑、跑一趟”时，run 是可数名词，单数前须加不定冠词 a；for run 缺少冠词。
grammar · medium
易错句子In a long run, this decision will help us.
正确表达In the long run, this decision will help us.
in the long run 是固定搭配，表示“从长远来看”，必须用定冠词 the，不能用 a。
grammar · medium
易错句子He has run of the whole office.
正确表达He has the run of the whole office.
have the run of 是固定短语，意为“有权自由使用”，其中 run 前必须用定冠词 the。
针对'赛跑'义项，反义词指慢速行走，不是直接反义但为常见对比
jog 指速度较慢、为锻炼而进行的匀速跑步；run 更泛指奔跑，速度和时间不限。
sprint 强调短距离、全速奔跑，通常用于比赛或紧急情况；run 没有这种距离和速度的限制。
dash 指突然、短促的急跑，常带有明确的目的；run 泛指奔跑，不一定突然或急促。
长跑
She goes for a long run every morning.
她每天早上都去长跑。
试运行
We need to do a test run of the new software.
我们需要对新软件进行一次试运行。
竞选公职
He announced his run for office last week.
他上周宣布竞选公职。
在逃；忙碌
The fugitive has been on the run for three days.
那个逃犯已经在逃三天了。
本垒打
He hit a home run in the ninth inning.
他在第九局击出了一个本垒打。
用完，耗尽
We ran out of milk this morning.
我们今天早上喝完了牛奶。
偶然遇见；遭遇（困难等）
I ran into an old friend at the store.
我在商店偶遇了一位老朋友。
家族遗传，一家人都有（某特征）
Her musical talent runs in the family.
她的音乐天赋是家族遗传的。
Dictionary facts from ECDICT, WIKTIONARY.