equivalent

x6

erase

x8

eraser

x0

erase-remove-idiom

x0

erasure

x0

erb

x0

erd

x0

er-diagrams

x0

ereg

x0

eregi

x2

ereg-replace

x1

ergonomics

x0

erl

x0

erlang

x108

erlang-ports

x1

erlang-shell

x1

erp

x1

errai

x1

errno

x8

error-checking

x2

error-code

x0

error-correction

x0

errordocument

x3

errorformat

x2

error-handling

x241

error-kernel

x1

errorlevel

x1

error-list

x1

error-log

x4

error-logging

x7

errorplacement

x1

errorprovider

x2

error-reporting

x12

error-suppression

x4

erubis

x0