in-house design

[Polyester]

HOW’s In-House Design Awards recognize the best creative work produced by designers doing in-house work for corporations, associations and organizations.


The phrase is in red that means the proudct is made by mine?
Can I omit "-" here? If not, why keep the "-" here?

 

[tedmc]

That is a word, not a phrase and it is hypenated. Have you checked it in the dictionary?

 

[Matthew Wai]

If not, why keep the "-" here?

I think this is because it needs a hyphen to be an adjective modifying the noun after it, but I am not a teacher.

 

[tedmc]

"In-house", meaning "done within an organisation"(antonym is "outsourced"), is a word in its own right, not purposely formed to create the adjective.

 

[Matthew Wai]

I think the OP wants to know that the hyphen is needed because it is an adjective, but I am not a teacher.

 

[JMurray]

not a teacher

I do see "inhouse" sometimes, but "in-house" is the more common form.
https://books.google.com/ngrams/gra...irect_url=t1;,in - house;,c0;.t1;,inhouse;,c0