She used pillows to bolster her back while sitting.

To support or strengthen something.
They need to bolster their argument with more evidence.
The team worked hard to bolster their chances of winning.
He tried to bolster his confidence before the presentation.
bolster support
bolster confidence
bolster efforts
support
strengthen
reinforce
She used pillows to bolster her back while sitting.

To support or strengthen something.
He added extra wood to bolster the structure.
The coach gave a pep talk to bolster the team's confidence.
They used a wall to bolster the tent against the wind.
bolster support
bolster confidence
bolster strength
strengthen
support
reinforce
He placed a bolster under his knees for comfort.

A cushion or pad used for support.
She used a bolster to support her back while reading.
The sofa had a bolster for extra comfort.
He added a bolster to his bed for better sleep.
decorative bolster
firm bolster
long bolster
cushion
pad
support