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What is IMOTERM?

IMOTERM is an online knowledge-base of maritime and specialized vocabularies in the six IMO languages, with over 30,000 terms relating to IMO, the UN system and the maritime sector.

Working only in English?

IMOTERM is a one-stop reference and editing tool for technical writers and all those working on documents in English or wishing to verify IMO terminology, as well as a useful source of information on IMO and what it does.

Working with languages?

IMOTERM is a multilingual tool for translators, interpreters and other linguists, ensuring the reliability and consistency of linguistic information developed at IMO and providing a platform to standardize terminology.



Dear IMOTERM users,

The IMOTERM website is no longer being updated.

IMO’s terminology database has been migrated to the UNTERM Portal, where it is publicly accessible.

Please follow this link to access our latest terminology:

Many thanks,
The Documents, Language Technologies, Terminology and Reference Section of IMO (

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IMOTERM is managed by the Terminology and Reference Section (TRS), IMO Conference Division.

To request access, or to send queries or feedback, please contact:


IMOTERM is an online multilingual tool and knowledge-base created primarily to facilitate the work of staff members of the International Maritime Organization (IMO) and other users who participate or are interested in the Organization's activities. The inclusion of a terminology record in this database should not be construed as an endorsement by IMO of any particular position, entity or programme.

The information provided in IMOTERM is provided on an “as is” and “as available” basis, without representations or warranties of any kind, either express or implied, in particular as to the accuracy or completeness of any of the information provided. IMO reserves the right to alter, limit or discontinue any part of this service at its discretion. Under no circumstances shall IMO be liable for any loss, damage, liability or expense suffered that is claimed to result from the use of IMOTERM, including without limitation, any fault, error, omission, interruption or delay relating thereto.

Hyperlinks to third-party websites do not imply any official endorsement of or responsibility on the part of IMO for the opinions, ideas, data or products presented at these locations, or guarantee the validity of the information provided. The sole purpose of links to third-party websites is to indicate further information available on related topics.


IMO provides access to IMOTERM knowledge-base as a courtesy to those who have an interest in its content. The content in this knowledge-base may be reproduced, distributed or adapted for private, non-commercial use without explicit permission from IMO, provided that the content is accompanied by an acknowledgement that IMO is the source, and that any changes to the original content are clearly indicated. Commercial usage of the content in the knowledge base is not permitted unless expressly authorized by IMO in writing.

This copyright notice is not applicable to third-party content. With regard to material contained in this knowledge-base that belongs to one or more third-party right holders, such as images, graphics, trademarks or logos, anyone using such content is solely responsible for clearing the rights to that third-party material with the right holder(s).

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