头发用英语表达说法是“hair”，hair具体解析如下：
1、音标： 英 [heə(r)] 美 [her]
2、意思：
n. 头发；毛发；极少量
v.生长(或产生)毛发
3、词语搭配：
arrange one's hair 整理头发
brush one's hair 梳理头发
color sb's hair 给某人染发
comb one's hair 梳头
cut (off) sb's hair 给某人削发
false hair 假发
flowing hair 平滑的头发
golden hair 金黄色的头发
grey hair 灰白头发
light hair 稀疏的头发
long hair 长发
in one's hair 头发上
a coat of hair 一身毛
a lock of hair 一绺头发
4、用法：
hair指“(人、动物的)毛，茸毛，汗毛”时是可数名词,可与数词连用表示具体数量(如几根),也可用a few, many, several等修饰表示不定数量。
hair泛指“头发”时,指人的整个头发,是集合名词,不可数。
5、例句：
His hair was carefully arranged.
他的头发梳理得很仔细。
The barber had cut your hair very short.
理发师把你的头发剪得很短。
Girls used to put their hair up on their seventeenth birthdays.
过去的姑娘17岁生日时就把头发束起来。
Mary asked me to help her to bind up her long hair.
玛丽让我帮她把长发扎起来。