support oneself; "he could barely exist on such a low wage"; "Can you live on $2000 a month in New York City?"; "Many people in the world have to subsist on $1 a day"
not openly; inwardly; "they were secretly delighted at his embarrassment"; "hoped secretly she would change her mind"
in secrecy; not openly; "met secretly to discuss the invasion plans"; "the children secretly went to the movies when they were supposed to be at the library"; "they arranged to meet in secret"