'Shear' is to cut or clip (especially wool); 'sheer' means pure or utter, or describes fabric that is very thin and transparent.
Verb/noun. To cut with scissors or shears. To clip the wool from sheep. In physics/engineering: a shearing force.
The farmer shears his sheep every spring before the hot season.
The bolt sheared off under the excessive pressure.
Use garden shears to trim the hedge into a neat shape.
Adjective/adverb/verb/noun. Utter or complete (sheer luck). Very thin and transparent (sheer fabric). Nearly vertical (sheer drop). Also: to swerve or turn suddenly.
It was sheer determination that got her through the marathon.
The cliff dropped in a sheer vertical fall to the ocean below.
She wore a sheer blouse over a white camisole.
Common mistake
"It was shear luck" when meaning pure/utter (correct: sheer luck). Or "She had on shear stockings" when meaning transparent (correct: sheer). The pair is confusing because both relate to cutting ideas.
Trick to remember it
'Shear' has EAR — like 'hear' and 'near' — sounds that involve specific action. 'Sheer' has double E like 'steep', 'deep', 'free' — conveying intensity or completeness.
Quick rule
Is it the verb to cut or clip? 'Shear'. Is it the adjective for utter, transparent, or nearly vertical? 'Sheer'.
Did you know?
In engineering, 'shear' describes forces acting parallel to a surface in opposite directions — like the two blades of scissors. Shear strength is critical in bridge design, aircraft structure, and earthquake engineering. The San Andreas Fault is essentially a shear zone — two tectonic plates sliding in opposite directions. 'Sheer' as a sailing term means to veer or swerve — 'the boat sheered away from the rocks' — a use borrowed from nautical English that explains why it can be both adjective and verb.
Exercise 1 · Pick the right one
The success was due to _____ hard work — no luck involved.
Exercise 2 · Pick the right one
The farmer will _____ the flock in late spring when temperatures start to rise.
Exercise 3 · Form the word
Is it the verb to cut or clip? 'Shear'. Is it the adjective for utter, transparent, or nearly vertical? 'Sheer'.
"It was shear luck" when meaning pure/utter (correct: sheer luck). Or "She had on shear stockings" when meaning transparent (correct: sheer). The pair is confusing because both relate to cutting ideas.
'Shear' has EAR — like 'hear' and 'near' — sounds that involve specific action. 'Sheer' has double E like 'steep', 'deep', 'free' — conveying intensity or completeness.
Bryan López
Founder of SpeakUP Academy