pre-op (n.) pre-med (n.) pre-law (adj.) pre-existing (adj.) pre-existence (n.) pre-exist (v.) pre-engage (v.) pre-emptory (adj.) pre-emptive (adj.) pre-emption (n.) pre-empt (v.) pre-eminent (adj.) pre-eminence (n.) pre-electric (adj.) pre-election (n.) pre-elect (v.) pre-eclampsia (n.) pre-dawn (adj.) pre-date (v.) pre-atomic (adj.)