diff --git a/basis/biassocs/biassocs-docs.factor b/basis/biassocs/biassocs-docs.factor
index 5588920f2e..ac5f4324a4 100644
--- a/basis/biassocs/biassocs-docs.factor
+++ b/basis/biassocs/biassocs-docs.factor
@@ -18,10 +18,10 @@ HELP: once-at
 
 HELP: >biassoc
 { $values { "assoc" assoc } { "biassoc" biassoc } }
-{ $description "Costructs a new biassoc with the same key/value pairs as the given assoc." } ;
+{ $description "Constructs a new biassoc with the same key/value pairs as the given assoc." } ;
 
 ARTICLE: "biassocs" "Bidirectional assocs"
-"A " { $emphasis "bidirectional assoc" } " combines a pair of assocs to form a data structure where both normal assoc opeartions (eg, " { $link at } "), as well as " { $link "assocs-values" } " (eg, " { $link value-at } ") run in sub-linear time."
+"A " { $emphasis "bidirectional assoc" } " combines a pair of assocs to form a data structure where both normal assoc operations (eg, " { $link at } "), as well as " { $link "assocs-values" } " (eg, " { $link value-at } ") run in sub-linear time."
 $nl
 "Bidirectional assocs implement the entire " { $link "assocs-protocol" } " with the exception of " { $link delete-at } ". Duplicate values are allowed, however value lookups with " { $link value-at } " only return the first key that a given value was stored with."
 $nl