to make rules or policies stricter
hacer las reglas o políticas más estrictas (hath-er las regu-las o pol-i-ticas mas es-tric-tas)
"The government decided to tighten up regulations on foreign investments."
"El gobierno decidió endurecer las regulaciones sobre las inversiones extranjeras." (El go-ber-no de-ci-dió en-du-re-cer las re-gu-la-cio-nes so-bre las in-ve-rsi-o-nes ex-tra-je-ras)
to make sure someone is safe or doing well
to become aware of something important
to have an argument; to stop being friends
to use money that you had saved
to mention or speak about something
to connect a device or service to a larger system