The difference between Build and Demolish

When used as verbs, build means to form (something) by combining materials or parts, whereas demolish means to destroy.

Build is also noun with the meaning: the physique of a human body.

check bellow for the other definitions of Build and Demolish

Build as a verb (transitive):

To form (something) by combining materials or parts.
Build as a verb (transitive):

To develop or give form to (something) according to a plan or process.
Build as a verb (transitive):

To increase or strengthen (something) by adding gradually to.
Build as a verb (transitive):

To establish a basis for (something).
Build as a verb (intransitive):

To form by combining materials or parts.
Build as a verb (intransitive):

To develop in magnitude or extent.
Build as a verb (transitive, computing):

To construct (software) by compiling its source code.
Build as a verb (intransitive, computing, of [[source code]]):

To be converted into software by compilation, usually with minimal human intervention.

Examples:

"This code won't build any more. Have you made any changes?"

Build as a noun (countable, uncountable):

The physique of a human body; constitution or structure of a human body.

Examples:

"Rugby players are of sturdy build."
Build as a noun (computing, countable):

Any of various versions of a software product as it is being developed for release to users.

Examples:

"The computer company has introduced a new prototype build to beta testers."
Build as a noun (video games, slang, countable):

Any structure, such as a building, statue, pool or forest, created by the player.

Examples:

"I made a build that looked like the Parthenon in that game."

Demolish as a verb:

To destroy.

Examples:

"They demolished the old mill and put up four townhouses."
Demolish as a verb (transitive, figuratively):

To defeat or consume utterly (as a theory, belief or opponent).