i Register
In some senses, conquest is marked as figuratively, obsolete, archaic, colloquial. Watch for register when choosing this word.
ADJ
rapid
The Spanish army achieved rapid conquest of the territory in just three months.
military
Norman, Roman, Spanish, etc.
The Norman conquest of England in 1066 changed the country forever.
sexual
VERB + CONQUEST
make
The team made an impressive conquest of their rivals after years of effort.
complete
PREP
by/through ~
The Roman Empire grew significantly through conquest and military expansion across Europe.