concavo-concave/konˌkayvoh konʹkayv/ adj

• push one's luck
• pushover
• push poll
• push-pull
• pushrod
• push-start
• push the (edge of) the envelope
• push through
• Pushtu
• push-up
• pushy
• pusillanimous
• puss
• pussy
• pussycat
• pussyfoot
• pussy willow
• pustulant
• pustular
• pustulate
• pustulated
• pustulation
• pustule
• put
• put a bold/brave face on something