legal instrument vs legal brief

Other hyponyms of legal instrument include articles of incorporation, derivative, derivative instrument, negotiable instrument, passport, ship's papers, manifest, debenture, power of attorney, letters of administration, letters testamentary, work papers, work permit, working papers, act, enactment, law, bill, measure, brief, testament, will, living will, deed, deed of conveyance, title, assignment, deed of trust, trust deed, conveyance, income tax return, return, tax return, licence, license, permit, letters patent, patent, judgement, judgment, legal opinion, opinion, acquittance, release, judicial writ, writ, authorisation, authorization, mandate, affidavit, written agreement, bill of indictment, indictment, impeachment, arraignment, certificate, security.