Regex braincramp - match “foreign” but not “foreign key”

Question

Still getting used to lookarounds in regex, but can't seem to get

\b(?>! key)foreign\b

To be the right solution? I'm trying to find all instances of the word foreign in some text, but NOT foreign key or foreignkey.

Answer 1

How about: \\bforeign(?!\\s?key)\\b

Example: http://regexr.com?343k9

Answer 2

The lookahead needs to be after foreign (and you don't need the > ):

\bforeign(?! key)\b

The word boundary will handle the foreignkey case.