a relationship between two things or situations, especially where one thing affects the other
a set of web pages created with the sole aim of linking to a target page, in an attempt to improve that page’s search engine ranking
a reference incorporated into the last item in a list to indicate that there are no further items in the list
a chemical bond between different chains of atoms in a polymer or other complex molecule
an electronic facility that enables audiovisual communication between people in different locations
a thing that is needed in order to complete a series, provide continuity, or gain complete knowledge
the point at which a system, sequence, or organization is most vulnerable; the least dependable element or member
a connection between documents or applications that enables material from one source to be incorporated into another, in particular a facility that automatically updates material in a document when an alteration is made to the document from which it originated
(on a website) content designed to attract attention and encourage those viewing it to create hyperlinks to the site, with the aim of improving the site’s position on the list of results returned by a search engine
a hook with a spring allowing the entrance but preventing the escape of a cord, key ring, etc.