This is normally used as a two-word phrase "head count." A few sources show the one-word compound noun "headcount" as a variant. But it does make sense if used in the plural (headcounts)because readers will not mistake it as a noun and verb.
Two words - "one day".
If you only count words with two or more letters there are 93 words:EHELENESHEHIINISLINESHSIELSENGENSGELGENGHIGIEGINHENHESHIEHINHISINSLEGLEILIELINLISNILSEGSEISELSENSHESINEGISELHIENGSGELSGENSGHISGIENGIESGINSGLENHEILHENSHIESHINSHISNISLELEGSLEISLENSLIENLIESLINELINGLINSNIGHNILSSHINSIGHSIGNSINESINGSINHGLENSHEILSHINGEINGLELENISLIENSLINESLINGSNEIGHNIGHSSEGNISENGISHIELSHINESINGESLINGHINGESINGLESNEIGHSSINGLESLEIGHENGLISHSHINGLE
It is two words. Writing it as one is acceptable in the UK and is referred to as a "Britishism." But in American grammar, it is always two separate words.
It is two words take it from a 7th grader
I recommend class work, as two words.
They are considered as one word.
No it is not it is only one word forty-five <- you count that as ONE word right?
No - it's just one word.
One word when you are refering to the term, I have a HEADACHE.
Headset, one word.
Generally, it's one word.
21000 Twenty one Thousand not 2100 Two Thousand one Hundred. Twenty-one hundred does not count!
It just be two because it would just look weird as one(headstart) but you could make it one with a hyphen(head-start) that would also look good. It depends on how you are using it. If you use it in a sentence, such as, "I got a head start in the race today," it is written as two words. If you are using it as a company or program name it depends on how they choose to write it.
head teacher school head
one
One, two, three...
it counts as one