diff --git a/src/objectliterals.jsdoc b/src/objectliterals.jsdoc
index 972e0e0a3b..d941a65ff5 100644
--- a/src/objectliterals.jsdoc
+++ b/src/objectliterals.jsdoc
@@ -527,7 +527,7 @@
  *     on.
  * @property {Array.<number>|undefined} resolutions Resolutions. If specified,
  *     requests will be made for these resolutions only.
- * @property {string|undefined} url WMS service url.
+ * @property {string|undefined} url WMS service URL.
  */
 
 /**
@@ -544,7 +544,7 @@
  * @property {number|undefined} minZoom Minimum zoom.
  * @property {number|undefined} maxZoom Maximum zoom.
  * @property {boolean|undefined} opaque Whether the layer is opaque.
- * @property {string|undefined} url Url.
+ * @property {string|undefined} url URL.
  */
 
 /**
@@ -556,14 +556,14 @@
  * @property {ol.Extent|undefined} imageExtent Extent of the image.
  * @property {ol.Size|undefined} imageSize Size of the image.
  * @property {ol.proj.ProjectionLike} projection Projection.
- * @property {string|undefined} url Url.
+ * @property {string|undefined} url URL.
  */
 
 /**
  * @typedef {Object} ol.source.TileJSONOptions
  * @property {null|string|undefined} crossOrigin crossOriin setting for image
  *     requests.
- * @property {string} url Url.
+ * @property {string} url URL.
  */
 
 /**
@@ -581,7 +581,7 @@
  * @property {ol.tilegrid.TileGrid|undefined} tileGrid Tile grid.
  * @property {number|undefined} maxZoom Maximum zoom.
  * @property {ol.proj.ProjectionLike} projection Projection.
- * @property {string|undefined} url WMS service url.
+ * @property {string|undefined} url WMS service URL.
  * @property {Array.<string>|undefined} urls WMS service urls. Use this instead
  *     of `url` when the WMS supports multiple urls for GetMap requests.
  */
@@ -638,7 +638,7 @@
  * @property {string|undefined} format Format.
  * @property {string} matrixSet Matrix set.
  * @property {Object|undefined} dimensions Dimensions.
- * @property {string|undefined} url Url.
+ * @property {string|undefined} url URL.
  * @property {number|undefined} maxZoom Maximum zoom.
  * @property {Array.<string>|undefined} urls Urls.
  */
@@ -666,7 +666,7 @@
 
 /**
  * @typedef {Object} ol.style.IconOptions
- * @property {string|ol.expr.Expression} url Icon image url.
+ * @property {string|ol.expr.Expression} url Icon image URL.
  * @property {number|ol.expr.Expression|undefined} width Width of the icon
  *     in pixels.  Default is the width of the icon image.
  * @property {number|ol.expr.Expression|undefined} height Height of the
diff --git a/src/ol/imageurlfunction.js b/src/ol/imageurlfunction.js
index 602c4d0796..fe52c718c0 100644
--- a/src/ol/imageurlfunction.js
+++ b/src/ol/imageurlfunction.js
@@ -13,7 +13,7 @@ ol.ImageUrlFunctionType;
 
 /**
  * @param {string} baseUrl Base URL (may have query data).
- * @param {Object.<string,*>} params to encode in the url.
+ * @param {Object.<string,*>} params to encode in the URL.
  * @param {function(string, Object.<string,*>, ol.Extent, ol.Size,
  *     ol.proj.Projection): (string|undefined)} paramsFunction params function.
  * @return {ol.ImageUrlFunctionType} Image URL function.
diff --git a/src/ol/source/imagewmssource.js b/src/ol/source/imagewmssource.js
index 2445312dc0..e3293703a9 100644
--- a/src/ol/source/imagewmssource.js
+++ b/src/ol/source/imagewmssource.js
@@ -111,7 +111,7 @@ ol.source.ImageWMS.prototype.getFeatureInfoForPixel =
       extent = [bottomLeft[0], topRight[0], bottomLeft[1], topRight[1]],
       url = this.imageUrlFunction(extent, size, projection);
   goog.asserts.assert(goog.isDef(url),
-      'ol.source.ImageWMS#imageUrlFunction does not return a url');
+      'ol.source.ImageWMS#imageUrlFunction does not return a URL');
   ol.source.wms.getFeatureInfo(url, pixel, this.getFeatureInfoOptions_, success,
       opt_error);
 };
diff --git a/src/ol/source/tilewmssource.js b/src/ol/source/tilewmssource.js
index 6f582b039c..91013494fa 100644
--- a/src/ol/source/tilewmssource.js
+++ b/src/ol/source/tilewmssource.js
@@ -147,7 +147,7 @@ ol.source.TileWMS.prototype.getFeatureInfoForPixel =
       offset = map.getPixelFromCoordinate(ol.extent.getTopLeft(tileExtent)),
       url = this.tileUrlFunction(tileCoord, projection);
   goog.asserts.assert(goog.isDef(url),
-      'ol.source.TileWMS#tileUrlFunction does not return a url');
+      'ol.source.TileWMS#tileUrlFunction does not return a URL');
   ol.source.wms.getFeatureInfo(url,
       [pixel[0] - offset[0], pixel[1] - offset[1]], this.getFeatureInfoOptions_,
       success, opt_error);
diff --git a/src/ol/source/wmssource.js b/src/ol/source/wmssource.js
index 52e8d973cd..36626c7257 100644
--- a/src/ol/source/wmssource.js
+++ b/src/ol/source/wmssource.js
@@ -25,7 +25,7 @@ ol.source.WMSGetFeatureInfoMethod = {
 
 
 /**
- * @param {string} baseUrl WMS base url.
+ * @param {string} baseUrl WMS base URL.
  * @param {Object.<string, string|number>} params Request parameters.
  * @param {ol.Extent} extent Extent.
  * @param {ol.Size} size Size.
diff --git a/src/ol/style/iconsymbolizer.js b/src/ol/style/iconsymbolizer.js
index 2443ea6d3b..321ca0b5a6 100644
--- a/src/ol/style/iconsymbolizer.js
+++ b/src/ol/style/iconsymbolizer.js
@@ -173,8 +173,8 @@ ol.style.Icon.prototype.getRotation = function() {
 
 
 /**
- * Get the url.
- * @return {ol.expr.Expression} Icon url.
+ * Get the URL.
+ * @return {ol.expr.Expression} Icon URL.
  */
 ol.style.Icon.prototype.getUrl = function() {
   return this.url_;
@@ -239,8 +239,8 @@ ol.style.Icon.prototype.setRotation = function(rotation) {
 
 
 /**
- * Set the url.
- * @param {ol.expr.Expression} url Icon url.
+ * Set the URL.
+ * @param {ol.expr.Expression} url Icon URL.
  */
 ol.style.Icon.prototype.setUrl = function(url) {
   goog.asserts.assertInstanceof(url, ol.expr.Expression);
diff --git a/src/ol/tileurlfunction.js b/src/ol/tileurlfunction.js
index b9da756063..c883fbfe16 100644
--- a/src/ol/tileurlfunction.js
+++ b/src/ol/tileurlfunction.js
@@ -84,7 +84,7 @@ ol.TileUrlFunction.createFromTileUrlFunctions = function(tileUrlFunctions) {
 
 /**
  * @param {string} baseUrl Base URL (may have query data).
- * @param {Object.<string,*>} params to encode in the url.
+ * @param {Object.<string,*>} params to encode in the URL.
  * @param {function(this: ol.source.TileImage, string, Object.<string,*>,
  *     ol.Extent, ol.Size, ol.proj.Projection)} paramsFunction params function.
  * @return {ol.TileUrlFunctionType} Tile URL function.
@@ -156,7 +156,7 @@ ol.TileUrlFunction.withTileCoordTransform =
 
 
 /**
- * @param {string} url Url.
+ * @param {string} url URL.
  * @return {Array.<string>} Array of urls.
  */
 ol.TileUrlFunction.expandUrl = function(url) {