stand up

verb

1. rise to one's feet

   verb.motion

   Synonyms arise get up rise uprise

   Antonyms lie lie down

   Source: WordNet 3.0

2. refuse to back down; remain solid under criticism or attack

   verb.competition

   Source: WordNet 3.0

3. put into an upright position

   verb.contact

   Synonyms place upright stand

   Source: WordNet 3.0

4. be standing; be upright

   verb.contact

   Synonyms stand

   Antonyms lie

   Source: WordNet 3.0

5. defend against attack or criticism

   verb.communication

   Synonyms stick up

   Source: WordNet 3.0

6. resist or withstand wear, criticism, etc.

   verb.stative

   Synonyms hold up hold water

   Source: WordNet 3.0

7. rise up as in fear

   verb.motion

   Synonyms bristle uprise

   Source: WordNet 3.0