31-letter words containing o, p, e, n, i
- workers' compensation insurance — insurance required by law from employers for the protection of employees while engaged in the employer's business.
- you could have heard a pin drop — You can say you could have heard a pin drop when a place is extremely quiet, especially because everyone is waiting for someone to speak or when someone has made a shocking remark.
- zenithal equidistant projection — azimuthal equidistant projection.