This is the 346th most frequent Italian word.
messo
"messo" (noun): messenger or envoy. "messo" (verb): past participle of "mettere" (put, placed, set).
Here, 'messo' is the past participle of the verb 'mettere', used in the present perfect tense to indicate an action recently completed.
Ho messo il libro sul tavolo.
I placed the book on the table.
In this sentence, 'messo' serves as the descriptive past participle in a context discussing the arrangement or organization.
Il modo in cui hai messo le cose non mi piace.
The way you put things doesn't please me.
Here, 'messo' is part of the reflexive verb 'mettersi', meaning to begin or to commence doing something.