ph.
refrain from disclosing information about something; keep something secret
Oxford Dictionary
ph.
prevent someone from speaking or from disclosing something secret
Oxford Dictionary
ph.
refrain from disclosing information about something; keep something secret
Oxford American Dictionary
ph.
prevent someone from speaking or from disclosing something secret
Oxford American Dictionary
ph.
refrain or prevent someone from speaking or from disclosing something secret
Oxford Dictionary
ph.
refrain or prevent someone from speaking or from disclosing something secret
Oxford American Dictionary
ph.
refrain from disclosing information about something; keep something secret
Oxford American Dictionary
ph.
refrain from disclosing information about something; keep something secret
Oxford Dictionary