diff --git a/README.md b/README.md
index 5fbbec7..f4fc51c 100644
--- a/README.md
+++ b/README.md
@@ -8,10 +8,10 @@
 
 # Constraints.jl
 
-A  back-end pacage for JuliaConstraints front packages, such as `LocalSearchSolvers.jl`.
+A  back-end package for JuliaConstraints front packages, such as `LocalSearchSolvers.jl`.
 
 It provides the following features:
-- A dictionary to store usual constraint: `usual_contraint`, which contains the following entries
+- A dictionary to store usual constraint: `usual_constraint`, which contains the following entries
   - `:all_different`
   - `:dist_different`
   - `:eq`, `:all_equal`, `:all_equal_param`
@@ -23,7 +23,7 @@ It provides the following features:
   - error (a function that evaluate how much `c` is violated)
   - parameters length
   - known symmetries of `c`
-- A learning function using `CompositionalNetworks.jl`. If no error function is given when instanciating `c`, it will check the existence of a composition related to `c` and set the error to it.
+- A learning function using `CompositionalNetworks.jl`. If no error function is given when instantiating `c`, it will check the existence of a composition related to `c` and set the error to it.
 
 ## Contributing
 
diff --git a/src/constraint.jl b/src/constraint.jl
index a714223..83417c4 100644
--- a/src/constraint.jl
+++ b/src/constraint.jl
@@ -6,9 +6,9 @@ const USUAL_SYMMETRIES = Dict(:permutable => sort)
 
 """
     Constraint
-Parametric stucture with the following fields.
+Parametric structure with the following fields.
 - `concept`: a Boolean function that, given an assignment `x`, outputs `true` if `x` satisfies the constraint, and `false` otherwise.
-- `error`: a positive function that works as preferences over invalid assignements. Return `0.0` if the constraint is satisfied, and a strictly positive real otherwise.
+- `error`: a positive function that works as preferences over invalid assignments. Return `0.0` if the constraint is satisfied, and a strictly positive real otherwise.
 """
 mutable struct Constraint{FConcept <: Function, FError <: Function}
     args::Int