go down

verb

1. move downward and lower, but not necessarily all the way

   verb.motion

   Synonyms come down descend fall

   Antonyms ascend go up

   Source: WordNet 3.0

2. go under,

   verb.motion

   Synonyms go under settle sink

   Antonyms float swim

   Source: WordNet 3.0

3. grow smaller

   verb.change

   Synonyms decline wane

   Source: WordNet 3.0

4. be recorded or remembered

   verb.stative

   Examples

   She will go down as the first feminist.

   Source: WordNet 3.0

5. be ingested

   verb.consumption

   Examples

   The food wouldn't go down.

   Source: WordNet 3.0

6. be defeated

   verb.competition

   Examples

   If America goes down, the free world will go down, too.

   Source: WordNet 3.0

7. disappear beyond the horizon

   verb.motion

   Synonyms go under set

   Antonyms ascend come up rise uprise

   Source: WordNet 3.0

8. stop operating

   verb.change

   Synonyms crash

   Source: WordNet 3.0