Sure there is. 
use strict;
use warnings;

my $string = 'gregarious gregarious gregarious';
my $count = 0;
$string =~ s/gregarious/$count++ ? "\\underline{gregarious}" : "\\foot
+note{gregarious}"/ieg

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-enlil

In reply to Re: Combining two Reg Expressions with substitution by Enlil
in thread Combining two Reg Expressions with substitution by cranberry13

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