register - enrol enlist, officially record something, enroll⏎
primary - main, fundamental, simple, most important⏎
recognise - know, remember, see, recognize⏎
rate - measure, amount, decide, estimate, price⏎
nullify - invalidate, extinguish⏎
resilient - strong, able to recover quickly⏎
plunge - plummet, descend rapidly⏎
rescue - save, defend⏎
redundant - jobless, useless, unused⏎
novel - new, interesting, amusing⏎