diff --git a/man7/signal.7 b/man7/signal.7
index 56839be4d..b4e122e71 100644
--- a/man7/signal.7
+++ b/man7/signal.7
@@ -234,28 +234,28 @@ First the signals described in the original POSIX.1-1990 standard.
 l c c l
 ____
 lB c c l.
-Signal	Value	Action	Comment
-SIGHUP	\01	Term	Hangup detected on controlling terminal
+Signal	Standard	Action	Comment
+SIGHUP	P1990	Term	Hangup detected on controlling terminal
 			or death of controlling process
-SIGINT	\02	Term	Interrupt from keyboard
-SIGQUIT	\03	Core	Quit from keyboard
-SIGILL	\04	Core	Illegal Instruction
-SIGABRT	\06	Core	Abort signal from \fBabort\fP(3)
-SIGFPE	\08	Core	Floating-point exception
-SIGKILL	\09	Term	Kill signal
-SIGSEGV	11	Core	Invalid memory reference
-SIGPIPE	13	Term	Broken pipe: write to pipe with no
+SIGINT	P1990	Term	Interrupt from keyboard
+SIGQUIT	P1990	Core	Quit from keyboard
+SIGILL	P1990	Core	Illegal Instruction
+SIGABRT	P1990	Core	Abort signal from \fBabort\fP(3)
+SIGFPE	P1990	Core	Floating-point exception
+SIGKILL	P1990	Term	Kill signal
+SIGSEGV	P1990	Core	Invalid memory reference
+SIGPIPE	P1990	Term	Broken pipe: write to pipe with no
 			readers; see \fBpipe\fP(7)
-SIGALRM	14	Term	Timer signal from \fBalarm\fP(2)
-SIGTERM	15	Term	Termination signal
-SIGUSR1	10,30,16,16	Term	User-defined signal 1
-SIGUSR2	12,31,17,17	Term	User-defined signal 2
-SIGCHLD	17,20,18,18	Ign	Child stopped or terminated
-SIGCONT	18,19,25,26	Cont	Continue if stopped
-SIGSTOP	19,17,23,24	Stop	Stop process
-SIGTSTP	20,18,24,25	Stop	Stop typed at terminal
-SIGTTIN	21,21,26,27	Stop	Terminal input for background process
-SIGTTOU	22,22,27,28	Stop	Terminal output for background process
+SIGALRM	P1990	Term	Timer signal from \fBalarm\fP(2)
+SIGTERM	P1990	Term	Termination signal
+SIGUSR1	P1990	Term	User-defined signal 1
+SIGUSR2	P1990	Term	User-defined signal 2
+SIGCHLD	P1990	Ign	Child stopped or terminated
+SIGCONT	P1990	Cont	Continue if stopped
+SIGSTOP	P1990	Stop	Stop process
+SIGTSTP	P1990	Stop	Stop typed at terminal
+SIGTTIN	P1990	Stop	Terminal input for background process
+SIGTTOU	P1990	Stop	Terminal output for background process
 .TE
 .PP
 The signals
@@ -270,19 +270,19 @@ SUSv2 and POSIX.1-2001.
 l c c l
 ____
 lB c c l.
-Signal	Value	Action	Comment
-SIGBUS	7,10,10,10	Core	Bus error (bad memory access)
-SIGPOLL		Term	Pollable event (Sys V).
+Signal	Standard	Action	Comment
+SIGBUS	P2001	Core	Bus error (bad memory access)
+SIGPOLL	P2001	Term	Pollable event (Sys V).
 			Synonym for \fBSIGIO\fP
-SIGPROF	27,27,29,21	Term	Profiling timer expired
-SIGSYS	31,12,12,31	Core	Bad system call (SVr4);
+SIGPROF	P2001	Term	Profiling timer expired
+SIGSYS	P2001	Core	Bad system call (SVr4);
 			see also \fBseccomp\fP(2)
-SIGTRAP	5	Core	Trace/breakpoint trap
-SIGURG	23,16,21,29	Ign	Urgent condition on socket (4.2BSD)
-SIGVTALRM	26,26,28,20	Term	Virtual alarm clock (4.2BSD)
-SIGXCPU	24,24,30,12	Core	CPU time limit exceeded (4.2BSD);
+SIGTRAP	P2001	Core	Trace/breakpoint trap
+SIGURG	P2001	Ign	Urgent condition on socket (4.2BSD)
+SIGVTALRM	P2001	Term	Virtual alarm clock (4.2BSD)
+SIGXCPU	P2001	Core	CPU time limit exceeded (4.2BSD);
 			see \fBsetrlimit\fP(2)
-SIGXFSZ	25,25,31,30	Core	File size limit exceeded (4.2BSD);
+SIGXFSZ	P2001	Core	File size limit exceeded (4.2BSD);
 			see \fBsetrlimit\fP(2)
 .TE
 .PP
@@ -302,17 +302,17 @@ Next various other signals.
 l c c l
 ____
 lB c c l.
-Signal	Value	Action	Comment
-SIGIOT	6	Core	IOT trap. A synonym for \fBSIGABRT\fP
-SIGEMT	\-,7,7,-	Term	Emulator trap
-SIGSTKFLT	16,\-,\-,7	Term	Stack fault on coprocessor (unused)
-SIGIO	29,23,22,22	Term	I/O now possible (4.2BSD)
-SIGCLD	\-,\-,18,\-	Ign	A synonym for \fBSIGCHLD\fP
-SIGPWR	30,29,19,19	Term	Power failure (System V)
-SIGINFO	\-,29,\-,\-		A synonym for \fBSIGPWR\fP
-SIGLOST	\-,\-,\-,\-	Term	File lock lost (unused)
-SIGWINCH	28,28,20,23	Ign	Window resize signal (4.3BSD, Sun)
-SIGUNUSED	31,\-,\-,31	Core	Synonymous with \fBSIGSYS\fP
+Signal	Standard	Action	Comment
+SIGIOT	\-		Core	IOT trap. A synonym for \fBSIGABRT\fP
+SIGEMT	\-	Term	Emulator trap
+SIGSTKFLT	\-	Term	Stack fault on coprocessor (unused)
+SIGIO	\-	Term	I/O now possible (4.2BSD)
+SIGCLD	\-	Ign	A synonym for \fBSIGCHLD\fP
+SIGPWR	\-	Term	Power failure (System V)
+SIGINFO	\-		A synonym for \fBSIGPWR\fP
+SIGLOST	\-	Term	File lock lost (unused)
+SIGWINCH	\-	Ign	Window resize signal (4.3BSD, Sun)
+SIGUNUSED	\-	Core	Synonymous with \fBSIGSYS\fP
 .TE
 .PP
 (Signal 29 is