diff --git a/web/src/validation/index.js b/web/src/validation/index.js
index 26e27113..1465c29f 100644
--- a/web/src/validation/index.js
+++ b/web/src/validation/index.js
@@ -17,6 +17,7 @@ export function validateSentences(language, sentences) {
   run([
     getSentencesWithCorrectLength(validator, sentences),
     getSentencesWithoutNumbers(validator, sentences),
+    getSentencesWithoutAbbreviations(validator, sentences),
   ], valid, filtered);
 
   return {
@@ -82,6 +83,15 @@ function getSentencesWithoutNumbers(validator, sentences) {
   return { valid, filtered };
 }
 
+function getSentencesWithoutAbbreviations(validator, sentences) {
+  const { valid, filtered } =
+    typeof validator.filterAbbreviations !== 'function' ?
+      DEFAULT_VALIDATOR.filterAbbreviations(sentences) :
+      validator.filterAbbreviations(sentences);
+
+  return { valid, filtered };
+}
+
 function getValidatorFor(language) {
   return VALIDATORS[language] || DEFAULT_VALIDATOR;
 }
\ No newline at end of file
diff --git a/web/src/validation/languages/en.js b/web/src/validation/languages/en.js
index 557d239b..aaa5680c 100644
--- a/web/src/validation/languages/en.js
+++ b/web/src/validation/languages/en.js
@@ -1,5 +1,10 @@
 const MAX_WORDS = 14;
 const NUMBERS_REGEX = /[0-9]+/;
+// Any words consisting of uppercase letters or uppercase letters with a period
+// inbetween are considered abbreviations or acronyms.
+// This currently also matches fooBAR but we most probably don't want that either
+// as users wouldn't know how to pronounce the uppercase letters.
+const ABBREVIATION_REGEX = /[A-Z]{2,}|[A-Z]+\.*[A-Z]+/;
 
 export function getMaxLength() {
   return MAX_WORDS;
@@ -16,5 +21,19 @@ export function filterNumbers(sentences) {
     return true;
   });
 
+  return { valid, filtered };
+}
+
+export function filterAbbreviations(sentences) {
+  const filtered = [];
+  const valid = sentences.filter(sentence => {
+    if (sentence.match(ABBREVIATION_REGEX)) {
+      filtered.push(sentence);
+      return false;
+    }
+
+    return true;
+  });
+
   return { valid, filtered };
 }
\ No newline at end of file