1
have/get a haircut
have a haircut 和 get a haircut 都表示让别人给你理发，get 更口语化。
I need to have a haircut before the interview.
面试前我需要理个发。
发型；发式
先理解核心含义，再看它在真实句子里的用法。
发型；发式
the style in which hair has been cut
I need to have a haircut before the interview.
面试前我需要理个发。
修剪头发的行为,通常由理发师、发型师或美容师专业完成。
The act of cutting of the hair, often done professionally by a barber, hair stylist, or beautician.
剪发后的发型样式
the style in which hair has been cut
头发剪成的样式。
The style into which the hair is cut.
剪发的行为
the act of cutting the hair
I need to get a haircut before the job interview.
面试前我需要去理个发。
Her new haircut really suits her face.
她的新发型很适合她的脸型。
He gets a haircut every month.
他每个月都理一次发。
have a haircut 和 get a haircut 都表示让别人给你理发，get 更口语化。
I need to have a haircut before the interview.
面试前我需要理个发。
need a haircut 比 need to have a haircut 更简洁常用。
Your hair is getting long; you need a haircut.
你头发长了，需要理发了。
give sb a haircut 表示给某人理发，理发师通常叫 barber 或 hairstylist。
The barber gave me a haircut in ten minutes.
理发师十分钟就给我理完了发。
Not this
I need haircut.
Use this
I need a haircut.
haircut 是可数名词，单数形式前需要加不定冠词 a/an；中文里“理发”没有冠词，容易漏掉。
Not this
I cut my hair at the salon yesterday.
Use this
I had my hair cut at the salon yesterday.
表示去理发店让别人为你理发时，英文使用 have/get one's hair cut，而不是 cut one's hair；cut one's hair 通常指自己动手剪。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
理发，剪头发
I need to get a haircut before the interview.
面试前我需要去理个发。
需要理发
His hair is so long that he really needs a haircut.
他的头发太长了，真的需要理发了。
短发发型
She chose a short haircut for the summer.
她夏天剪了个短发发型。
理发预约
I made a haircut appointment for Friday afternoon.
我预约了周五下午去理发。
糟糕的发型
He was unhappy about his bad haircut.
他对剪坏的头发很不满意。
新发型
Everyone complimented her new haircut.
大家都很称赞她的新发型。
蒙受损失；接受削减（常用于金融语境）
Investors in the failed company had to take a haircut on their holdings.
那家破产公司的投资者不得不在所持资产上蒙受损失。
Use haircut naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象理发师用剪刀剪头发：hair（头发）+ cut（剪）= haircut（理发）。
语域：neutral 常见场景：日常交谈、理发店/美发店场景 “haircut” 作名词表示“发型/发式”时，语气比较中性，日常交谈和理发店场景中都常用；在比较随意的场合也很自然，没有明显的正式或非正式限制。
The final syllable of 'haircut' is /kʌt/, so it rhymes with cut, hut, nut, but, and shut. The spelling pattern -ut is usually pronounced /ʌt/ in these words; however, put looks similar but is pronounced /pʊt/ and does not rhyme.
Dictionary facts from ECDICT, WIKTIONARY.