diff --git a/01.md b/01.md
index 54f69149..a59d0705 100644
--- a/01.md
+++ b/01.md
@@ -68,7 +68,7 @@ To verify the authenticity of an event:
 
 ## Kinds
 
-The `.kind` property specifies the meaning of an event, its tags and it is further defined in the various NIPs in this repository
+The `.kind` attribute specifies the meaning of an event, its tags and it is further defined in the various NIPs in this repository
 
 Specific ranges define storage behaviors: 
 
@@ -152,15 +152,15 @@ To open and update, and close subscriptions, Clients MUST use the following form
 
 A `REQ` message may contain multiple filters which are interpreted as an OR statement: events that match any of the filters are to be returned.
 
-Properties in each filter are a logical AND statement: all present properties must match for the filter to pass. 
+Attributes are a logical AND statement: all present attributes must match for the filter to pass. 
 
-Array properties (i.e. `ids`, `authors`, `kinds`, and tag filters) represent a logical OR statement. At least one of the arrays' values must match the respective field in the event to be considered a match. In the case of tag attributes such as `#e`, for which an event may have multiple values, the event and filter condition values must have at least one item in common.
+Array attributes (i.e. `ids`, `authors`, `kinds`, and tag filters) represent a logical OR statement. At least one of the arrays' values must match the respective field in the event to be considered a match. In the case of tag attributes such as `#e`, for which an event may have multiple values, the event and filter condition values must have at least one item in common.
 
 The `ids`, `authors`, `#e`, and `#p` filter lists MUST contain exact 64-character lowercase hex values.
 
-The `since` and `until` properties are used to specify the time range of events returned in the subscription. An event matches the filter if `since <= created_at <= until` holds.
+The `since` and `until` attributes are used to specify the time range of events returned in the subscription. An event matches the filter if `since <= created_at <= until` holds.
 
-The `limit` property informs the maximum number of events to return, sorted by `.created_at` desc. It operates over the previously stored events and is ignored afterward. 
+The `limit` attribute informs the maximum number of events to return, sorted by `.created_at` desc. It operates over the previously stored events and is ignored afterward. 
 
 ### Subscription Responses