bound1
  
  v.
 walk or run with leaping strides.
n.
 a leaping movement towards or over something.
 
  Etymology
  C16: from Fr. bond (n.), bondir (v.) ‘resound’, later ‘rebound’, from late L. bombitare, from L. bombus ‘humming’.
 
  
    
bound2
  
  n.
  - a boundary.
 - a limitation or restriction. 
▸technical a limiting value.
 
v.
  - form the boundary of.
 - restrict.
 
 
  Phrase
  
    
      - out of bounds
  - beyond the acceptable or permitted limits.
 - (in sport) beyond the field of play.
 
 
    
   
  Etymology
  ME: from OFr. bodne, from med. L. bodina, earlier butina.
 
  
    
bound3
  
  adj.
 going towards somewhere:
 a train bound for Edinburgh.
 ▸destined to have a particular experience:
 they were bound for disaster.
 
  Etymology
  ME boun (in the sense ‘ready, dressed’), from ON búinn, past part. of búa ‘get ready’.
 
  
    
bound4
  
  adj.
    - 
(-bound)
 restricted or confined to or by a place or situation:
 his job kept him city-bound.
 - certain to be or to do or have something. 
▸obliged to do something.
 - 
(-bound)
 (of a book) having a specified binding.
 - (of a grammatical element) occurring only in combination with another form.
 
past and past participle of 
bind.
 
  Phrase
  
    
      - I'll be bound
 Brit. I am sure.