Supporter and Sustainer

Supporter noun - A person who actively supports or favors a cause.

Sustainer and supporter are semantically related in advocate topic. In some cases you can use "Sustainer" instead a noun "Supporter".

Nearby Words: support, supported, supporting, supportive, supportable

Sustainer noun - Someone who upholds or maintains.

Supporter and sustainer are semantically related in sponsor topic. You can use "Supporter" instead a noun "Sustainer", if it concerns topics such as chief support, promotes, person who helps another.