The zero-width non-joiner (ZWNJ) is a non-printing character used in the computerization of writing systems that make use of ligatures. When placed between two characters that would otherwise be connected into a ligature, a ZWNJ causes them to be printed in their final and initial forms, respectively. This is also an effect of a space character, but a ZWNJ is used when it is desirable to keep the words closer together.
The ZWNJ is encoded in Unicode as U+200C zero width non-joiner (HTML: ‌ ‌).
Read more about Zero-width Non-joiner: Use of The ZWNJ For Correct Typography, Use of The ZWNJ For Displaying Alternate Forms, Symbol