WP Content Filter

Content Censor replaces configured words when WordPress displays supported
content. Your original posts, pages, and comments remain unchanged in the
database, so authorised editors can continue to work with the source text.

Use the settings page to:

• define the words to filter;
• choose whole-word or embedded matching;
• select case-sensitive or case-insensitive matching;
• choose a replacement character and masking style;
• enable filtering for content, excerpts, titles, comments, author names, tags,
  and tag clouds; and
• exclude selected post or page IDs.

Content Censor is a presentation-layer filter. It does not replace appropriate
permissions, moderation, reporting, or security controls.

Upgrade to Content Censor Pro for batched site scanning, browser-title and
BuddyPress filtering, custom hook support, automatic updates, and priority
support: https://wpgoplugins.com/plugins/content-censor/