Answer:

schwa

Answer	Crossword Clue
SCHWA	Inverted "e"
SCHWA	Unstressed vowel
SCHWA	Upside-down "e"

SCHWA	It makes you say "Uh"
SCHWA	"The" vowel
SCHWA	Neutral vowel
SCHWA	"Uh," phonetically
SCHWA	Stress-free character?
SCHWA	Inverted e
SCHWA	Phonetic symbol
SCHWA	One of two heard in America

SCHWA	The "e" sound in "system," e.g.
SCHWA	The "e" sound in "the"
SCHWA	Neutral vowel sound indicator
SCHWA	The "a" sound in "about"
SCHWA	Vowel sound represented by an upside-down "e"
SCHWA	The "a" sound in "afire"
SCHWA	The "u" sound in "circus"
SCHWA	Unstressed vowel sound

SCHWA	Upside down lower case "e"
SCHWA	Vowel sound at either end of "America"
SCHWA	Neutral vowel sound
SCHWA	Pronunciation symbol
SCHWA	Stress-free sound symbol
SCHWA	Sound symbolized by an inverted e
SCHWA	Sound in the middle of Italy?
SCHWA	Symbol in pronunciation guides

SCHWA	Vowel sound
SCHWA	The "e" sound in "tandem"
SCHWA	The "u" sound in "census"
SCHWA	The "a" sound in "about" or "around"
SCHWA	A sound
SCHWA	U's sound in "circus"
SCHWA	Weak vowel
SCHWA	Sound of a

SCHWA	Dull sound
SCHWA	It's stress-free
SCHWA	Sound represented by an upside-down "e"
SCHWA	Unstressed central vowel sound.
SCHWA	Phonetic symbol (inverted "e").