Both are unstressed, so -er is /ər/ rather than the /ɜːr/ of her. The same ending also makes agent nouns: teacher, farmer, baker.
Word endings
-er / -est SUFFIX_ER_01
Strong rule · High reliability · Very common · Early · Reading and spelling
Where Wiggler teaches it: Skill 13: Suffixes
Big, bigger, biggest. The -er and -est bits are quiet — you do not say them loudly.
-er and -est are unstressed suffixes. -er makes comparatives (bigger) and agent nouns (teacher); -est makes superlatives. Both reduce to schwa-like vowels.
Two distinct morphemes sharing a spelling: the comparative -er and the agentive -er. Both are unstressed and both reduce, so for reading they behave identically. The doubling and y-to-i changes apply as with -ing and -ed.
bigger, biggest, teacher, farmer, faster
longer, smaller, taller, hotter, happier, happiest, baker, painter, singer, writer, runner
Made-up words that follow the rule. A child who reads these has the pattern rather than the vocabulary.
blimmer, shuggest, fraper
Point out that the -er in teacher and the -er in bigger look the same and mean quite different things. That is a child's first useful encounter with the idea that spelling encodes meaning rather than only sound, and it prepares the ground for prefix work.
To read with every step of the way.
The reading buddy that listens. Structured, personalised phonics for ages 4 to 10, in joyful minutes a day.
Contact: hi@wigglerjr.com
DPIIT recognised startup. Government of India.
© 2026 Wiggler Pvt. Ltd. Made in India with