To physically support or keep something in position so it does not fall.
The old bridge is held up by strong steel cables.
A: How is that shelf not falling? B: It's held up by brackets screwed into the wall.
Modern buildings are often held up by a steel frame, which makes them stronger and safer.
Common mistake
✗What holds up it?
✓What holds it up?
With a pronoun, the object goes in the middle — 'hold it up'.
Tell it apart
These beams hold up the ceiling.
support it
The traffic held us up.
delayed us
Use 'hold up' when something is keeping another thing from falling down.'Hold up' (support) is about keeping something in place, not about making it higher.
To continue to be true, valid, or convincing when examined closely or tested over time.
Her theory about language acquisition doesn't really hold up under closer scrutiny.
A: Do you think his explanation for the drop in sales holds up? B: Not really. Once you look at the data, there are too many inconsistencies.
While the initial findings appear promising, the methodology does not hold up to rigorous academic analysis.
Common mistake
✗Does this theory hold up to scrutiny?
✓Does this theory hold up under scrutiny?
'Hold up UNDER scrutiny/pressure' (not 'to scrutiny').
Tell it apart
The alibi didn't hold up.
didn't stand up to testing
The pillars hold up the roof.
physically support it
'Hold up' in this sense is used in academic, analytical, or evaluative contexts to discuss whether an idea, argument, or theory remains convincing or valid when examined critically. It is neutral in register and common in both spoken and written academic English.Unlike the B-level senses (delay, support, rob), this sense is figurative and refers to the strength or validity of abstract concepts, not physical objects or actions.