to protect /prəˈtekt/ /prəˈtekt/
to shield /ʃild/ /ʃiːld/
to preserve /prəˈzɜrv/ /prɪˈzɜːv/
to guard /ɡɑːrd/ /gɑːd/
to shelter /ˈʃel.t̬ər/ /ˈʃɛltə/