What is the meaning of uphold?

verb

• Keep or maintain in unaltered condition; cause to remain or last.
  • usage: "preserve the peace in the family"; "continue the family tradition"; "Carry on the old traditions"
  • synonyms: continue, carry on, bear on, preserve
• Stand up for; stick up for; of causes, principles, or ideals.
• Support against an opponent.
  • usage: "The appellate court upheld the verdict"
  • synonyms: maintain