research & development; R&D

(geology) lava dome

(of public transportation) scheduled operation stop due to upcoming bad weather

(of public transportation) to stop operation on schedule due to upcoming bad weather

(astrology, collective) the twelve zodiac signs

(idiomatic) to have grown tense (of a situation); to have become critical (and to be on the verge of a major upheaval)

class for special needs

urgent / sudden / hasty / rapid / fast / quick / abrupt / hurry

station; one's post; stationed at / resident / stationary

immature / juvenile / childish / immature person / juvenile person / childish person / amateurish / inexperienced / unprofessional