This is the er / ir / ur digraph
This is pronounced as /urr/
This sound is called a schwa
Word lists
er
ir
ur
her
after
paper
water
herb
verb
term
stern
verse
different
together
silver
under
over
never
river
nerve
serve
sister
another
mother
father
fir
stir
bird
third
girl
twirl
firm
chirp
first
thirsty
birth
birthday
dirt
dirty
shirt
skirt
thirteen
thirty
disturb
church
murder
murmur
burn
burnt
return
Saturn
turn
surprise
purpose
curse
nurse
purse
burst
Thursday
Saturday
hurt
further
urgent