What Collins Dictionary's terms say

This service does not condone any ideas contained in its user-generated contents

In the terms and conditions, it states, "The User Content does not reflect our opinions, views or policies."

Your IP address is collected, which can be used to view your approximate location

In the privacy policy, it states, "The information we obtain through cookies may include IP address ..."...

You agree not to use the service for illegal purposes

In the section about which activity is prohibited in the terms and conditions, one item states, "using the Site in a manner inconsistent with any and all applicable laws and regulations".

This service gives your personal data to third parties involved in its operation

"We may share the Personal Data we collect with ... Service providers in the US and other jurisdictions who perform services on our behalf".

Your personal data may be aggregated into statistics

Your personal data is aggregated into statistics

In a section on how they use information in the privacy policy, it states, "De-identify Personal Data to provide third parties with aggregated data reports showing de-identified information;"

You should revisit the terms periodically, although in case of material changes, the service will notify

In the "Updates to our privacy notice" section, it states, "This Privacy Notice may be updated periodically and without prior notice to you to reflect changes in our Personal Data practices. For significant changes, we will notify you by posting a prominent notice on our Services indicating at the top of the Notice when it was most recently updated. "

Your account can be suspended for several reasons

In the online communities section of the privacy policy, it states that "We also do not tolerate spam, unrequested, commercial or harassing correspondence sent to other users of the sites via our website forums or other message boards, and we reserve the right to suspend the membership of any user who sends messages of this kind."

You agree not to submit libelous, harassing or threatening content

In the section stating what you represent and warrant as a user in the terms and conditions, it staates, "the User Content is not libellous or obscene;"

You are responsible for maintaining the security of your account and for the activities on your account

In the section on online communities in the privacy policy, it states, "It is your responsibility to keep your password secure ...".

Your content can be used by the service provider for all their existing and future services

This service can use your content for all their existing and future services

In the terms and conditions, it states, "By agreeing to these Terms of Use and by uploading any words, definitions, comments or other content to the Site (“User Content”) , you grant HarperCollins an irrevocable, perpetual, non-exclusive, transferable, fully paid, royalty-free, worldwide license (with the right to sublicense) to use such materials at Our own discretion including, without limitation, to copy, publish, stream, store, retain, publicly perform or display, transmit, scan, reformat, modify, edit, frame, translate, excerpt, adapt, create derivative works and distribute through any method now-known or developed in the future"

Your content can be distributed through any media known now or in the future

In the terms and conditions, it states, "By agreeing to these Terms of Use and by uploading any words, definitions, comments or other content to the Site (“User Content”) , you grant HarperCollins an irrevocable, perpetual, non-exclusive, transferable, fully paid, royalty-free, worldwide license (with the right to sublicense) to use such materials at Our own discretion including, without limitation, to copy, publish, stream, store, retain, publicly perform or display, transmit, scan, reformat, modify, edit, frame, translate, excerpt, adapt, create derivative works and distribute through any method now-known or developed in the future". | This is the best case. I had trouble finding it due to the fact that it was in the "Deprecated" section.