-eer — one who is concerned with (affix)
-eer
one who is concerned with
Used in (4)
engineer
A2
/ˌɛnd͡ʒɪˈnɪ(ə)ɹ/
A person whose job is to design, build, or maintain machines, structures, or systems.
Meaning
Off
Sound
Off
volunteer
B1
/ˌvɑlənˈtɪɹ/
A person who offers to do something, often without being paid.
Meaning
Off
Sound
Off
mountaineer
C1
/ˌmaʊn.tɪnˈɪɹ/
A person who climbs mountains for sport or pleasure.
Meaning
Off
Sound
Off
auctioneer
C2+
/ˌɔkʃəˈnɪr/
a person who conducts sales by auction
Meaning
Off
Sound
Off