aio_return (3)       - get return status of asynchronous I/O operation
BIO_set_mem_eof_return (3ssl) - memory BIO
canonicalize_file_name (3) - return the canonicalized filename
DBI::Const::GetInfoReturn (3pm) - Data and functions for describing GetInfo results
File::Temp (3perl)   - return name and handle of a temporary file safely
fsck.nfs (8)         - Dummy fsck.nfs script that always returns success.
ftime (3)            - return date and time
iruserok (3)         - routines for returning a stream to a remote command
lookup_dcookie (2)   - return a directory entry's path
nan (3)              - return 'Not a Number'
nanf (3)             - return 'Not a Number'
nanl (3)             - return 'Not a Number'
rcmd (3)             - routines for returning a stream to a remote command
realpath (3)         - return the canonicalized absolute pathname
rexec (3)            - return stream to a remote command
rresvport (3)        - routines for returning a stream to a remote command
rt_sigreturn (2)     - return from signal handler and cleanup stack frame
ruserok (3)          - routines for returning a stream to a remote command
sigreturn (2)        - return from signal handler and cleanup stack frame
stpcpy (3)           - copy a string returning a pointer to its end
stpncpy (3)          - copy a fixed-size string, returning a pointer to its end
strerror (3)         - return string describing error number
strerror_r (3)       - return string describing error number
strsignal (3)        - return string describing signal
sysinfo (2)          - returns information on overall system statistics
telldir (3)          - return current location in directory stream
ttyname (3)          - return name of a terminal
ttyname_r (3)        - return name of a terminal
volname (1)          - return volume name
wcpcpy (3)           - copy a wide character string, returning a pointer to its end
wcpncpy (3)          - copy a fixed-size string of wide characters, returning a pointer to its end