clearance vs construction

clearance

noun
  • The act of clearing or something (such as a space) cleared. 

  • The first disposal in a chain that leaves the area of a stoppage, or a disposal that leaves the area of a stoppage itself. 

  • A permission for a vehicle to proceed, or for a person to travel. 

  • A permission to have access to sensitive or secret documents or other information. 

  • The act of kicking a ball away from the goal one is defending. 

  • The act of potting all the remaining balls on a table at one visit. 

  • Clear or net profit. 

  • The settlement of transactions involving securities or means of payment such as checks by means of a clearing house. 

  • A permission to use something, usually intellectual property, that is legally, but not otherwise, protected. 

  • The height or width of a tunnel, bridge or other passage, or the distance between a vehicle and the walls or roof of such passage; a gap, headroom. 

  • The distance between two moving objects, especially between parts of a machine 

  • A sale of merchandise, especially at significantly reduced prices, usually in order to make room for new merchandise or updated versions of the same merchandise. 

  • The removal of harmful substances from the blood; renal clearance. 

  • Removal of pieces from a rank, file or diagonal so that a bishop, rook or queen is free to move along it. 

  • The act of leaving the area of a stoppage. 

construction

noun
  • The manner in which something is built. 

  • The meaning or interpretation of a text, action etc.; the way something is viewed by an observer or onlooker. 

  • The process of constructing. 

  • The trade of building structures. 

  • Anything that has been constructed. 

  • A geometric figure of arcs and line segments that is drawable with a straightedge and compass. 

  • A group of words arranged to form a meaningful phrase. 

  • A (usually non-representational) structure, such as a collage etc. 

  • A building, model or some other structure. 

  • The act or result of construing the meaning of something. 

How often have the words clearance and construction occurred in a corpus of books? (source: Google Ngram Viewer )