Carved out and Tack on

Tack on and carved out are semantically related. In some cases you can use "Tack on" instead a verb "Carved out".

Tack on verb - To join (something) to a mass, quantity, or number so as to bring about an overall increase.

Carved out and tack on are semantically related. Sometimes you can use "Carved out" instead a verb "Tack on".