diff --git a/doc/gc.txt b/doc/gc.txt
index ac8d46cfa3..f51421bcd0 100644
--- a/doc/gc.txt
+++ b/doc/gc.txt
@@ -87,14 +87,14 @@ is triggered.
 Time measurement
 ----------------
 
-The GC's way of measing time uses (see ``lib/system/timers.nim`` for the 
+The GC's way of measuring time uses (see ``lib/system/timers.nim`` for the 
 implementation):
 
 1) ``QueryPerformanceCounter`` and ``QueryPerformanceFrequency`` on Windows.
 2) ``mach_absolute_time`` on Mac OS X.
 3) ``gettimeofday`` on Posix systems.
 
-As such it supports a resolution of nano seconds internally; however the API
+As such it supports a resolution of nanoseconds internally; however the API
 uses microseconds for convenience. 
 
 
diff --git a/doc/manual/typedesc.txt b/doc/manual/typedesc.txt
index 97ab18b56a..5087c12047 100644
--- a/doc/manual/typedesc.txt
+++ b/doc/manual/typedesc.txt
@@ -25,7 +25,7 @@ For the purposes of code generation, all static params are treated as
 generic params - the proc will be compiled separately for each unique
 supplied value (or combination of values). 
 
-Furthermore, the system module defines a `semistatic[T]` type than can be
+Furthermore, the system module defines a `semistatic[T]` type that can be
 used to declare procs accepting both static and run-time values, which can
 optimize their body according to the supplied param using the `isStatic(p)`
 predicate: