most vs somewhere

most

• Almost. 

• To a great extent or degree; highly; very. 

• Forms the superlative of many adjectives. 

• A record-setting amount. 

• The greatest amount. 

• The greater part. 

• The greater part of a group, especially a group of people. 

somewhere

• At some unspecified point. 

• In an uncertain or unspecified location. 

• To an uncertain or unspecified location. 

• Unspecified or unknown (unlocated) place or location.