The Tokpisin term "lokim dua" matches the English term "lock door"

other tokpisin words that include "lokim" : english :
lokim lock (vb)
blokim raise with block and tackle
other tokpisin words that include "dua" : english :
dua door
dua i go ausait exit (n)
paitim dua knock at door
peim dua pay admission
lusim dua unlock door