diff --git a/src/ol/coordinate.js b/src/ol/coordinate.js
index bcddadc1fb..3d262a2413 100644
--- a/src/ol/coordinate.js
+++ b/src/ol/coordinate.js
@@ -17,7 +17,7 @@ ol.CoordinateFormatType;
 
 
 /**
- * An array of numbers representing a coordinate.
+ * An array of numbers representing a coordinate. Example: `[16, 48]`.
  * @typedef {Array.<number>} ol.Coordinate
  * @todo api
  */
diff --git a/src/ol/geom/geometry.js b/src/ol/geom/geometry.js
index 613de8949d..a349368519 100644
--- a/src/ol/geom/geometry.js
+++ b/src/ol/geom/geometry.js
@@ -166,43 +166,56 @@ ol.geom.Geometry.prototype.transform = goog.abstractMethod;
 
 
 /**
+ * Array representation of a point. Example: `[16, 48]`.
  * @typedef {ol.Coordinate}
+ * @todo api
  */
 ol.geom.RawPoint;
 
 
 /**
+ * Array representation of a linsetring.
  * @typedef {Array.<ol.Coordinate>}
+ * @todo api
  */
 ol.geom.RawLineString;
 
 
 /**
+ * Array representation of a linear ring.
  * @typedef {Array.<ol.Coordinate>}
- *
+ * @todo api
  */
 ol.geom.RawLinearRing;
 
 
 /**
+ * Array representation of a polygon.
  * @typedef {Array.<ol.geom.RawLinearRing>}
+ * @todo api
  */
 ol.geom.RawPolygon;
 
 
 /**
+ * Array representation of a multipoint.
  * @typedef {Array.<ol.geom.RawPoint>}
+ * @todo api
  */
 ol.geom.RawMultiPoint;
 
 
 /**
+ * Array representation of a multilinestring.
  * @typedef {Array.<ol.geom.RawLineString>}
+ * @todo api
  */
 ol.geom.RawMultiLineString;
 
 
 /**
+ * Array representation of a multipolygon.
  * @typedef {Array.<ol.geom.RawPolygon>}
+ * @todo api
  */
 ol.geom.RawMultiPolygon;