A right, title, interest, claim, or demand of any kind or nature whatsoever affecting land set forth in, based upon or arising out of a registered instrument, and, without limiting the generality of the foregoing, includes a mortgage, lien, easement, agreement, contract, option, charge, annuity, lease, dower right, and restriction as to the use of land or other encumbrance affecting land.
Source
http://www.e-laws.gov.on.ca/html/statutes/english/elaws_statutes_90r20_e.htm