This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. The cracking or exploring of a telephone system, e.g. trying to get free calls or to discover special service numbers or other internal technical information.

v. Present participle of phreak.

"The art of cracking into the phone company to make free calls or just for the challenge of it is known as phreaking."

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