process vs hot-work

process is a noun but hot-work is not a noun.

Word	Noun	Adjective	Verb	Adverb
process	Yes	No	Yes	No
hot-work	No	No	Yes	No

As verbs, hot-work is a hyponym of process; that is, hot-work is a word with a more specific, narrower meaning than process:

Other hyponyms of process include cold work, coldwork, overwork, make over, retread, rework, rack, tool, till.

process (noun)	hot-work (noun)
a sustained phenomenon or one marked by gradual changes through a series of states
a particular course of action intended to achieve a result
a natural prolongation or projection from a part of an organism either animal or plant
(psychology) the performance of some composite cognitive activity; an operation that affects mental contents
a mental process that you are not directly aware of
a writ issued by authority of law; usually compels the defendant's attendance in a civil suit; failure to appear results in a default judgment against the defendant

process (verb)	hot-work (verb)
subject to a process or treatment, with the aim of readying for some purpose, improving, or remedying a condition	roll, press, forge, or shape (metal) while hot
perform mathematical and logical operations on (data) according to programmed instructions in order to obtain the required information
deliver a warrant or summons to someone
shape, form, or improve a material
institute legal proceedings against; file a suit against
deal with in a routine way
march in a procession