bom chìm

== Vietnamese == === Etymology === bom (“bomb”) +‎ chìm (“to be submerged”). === Pronunciation === (Hà Nội) IPA(key): [ʔɓɔm˧˧ t͡ɕim˨˩] (Huế) IPA(key): [ʔɓɔm˧˧ t͡ɕim˦˩] (Saigon) IPA(key): [ʔɓɔm˧˧ cim˨˩] === Noun === bom chìm (military) a depth charge; submersible bomb Synonym: thùng nổ sâu