Jump to a numbered program line or a label. A label is an identifier at the start of a line, ended with a colon.
GOTO line GOTO label
line - program line number label - label name (without the colon)
Example:
GOTO Skip
PRINT "NO"
Skip:
PRINT 42
GOTO DONE
PRINT "NO"
DONE:
PRINT 42
Source: docs/help/goto.txt inmmcore. On the computer, typeHELP GOTO.