Intrusion Intrusion is placing an additional sound between two sounds. A well known case of intrusion is the use of a semivowel /j/ or /w/ to avoid hiatus. Hiatus, which means a gap, happens when we try to pronounce two consecutive vowel sounds clearly. To avoid the gap, we need to use a semivowel between two consecutive vowels. For example, in the phrase "he is," a small /j/ is added between the two vowels: “he/y/is.” This addition allows both vowel sounds to be pronounced fully and separately without pausing between the two words. If we do not add /j/ and continue the sound, it is not clear whether we are saying “he is” or “his.” /j/ intrusion We add /j/ sound before another vowel sound if a word ending in a vowel sound makes us move the lips sideways, as is common with high front vowels. I asked. I /j/ asked. She always comes on time. She /j/ always comes on time. the end the /j/ end in the evening in the /j/ evening pay attention pay /j/ attention my office my /j/