Related to harbor (holding/concealing)
Hold a Grudge: This idiom means to harbor feelings of resentment or anger towards someone for a long time.
Bear a Grudge: Similar to "hold a grudge," this idiom implies harboring negative feelings or resentment.
Nurse a Grudge: This expression means to carefully maintain and nurture negative feelings or resentment toward someone.
Keep Under Your Hat: This idiom suggests keeping something secret or hidden, similar to harboring information.
Close to the Vest: This phrase means keeping something secret or hidden, often related to one's plans or intentions.
Keep (Something) in Your Back Pocket: This idiom implies keeping a secret or a hidden advantage that can be used at a later time.
Hold Something Close to Your Chest: This expression means to keep something private or concealed.
Keep (Something) on the Down Low: This idiom indicates keeping something a secret or maintaining discretion about a situation or information.
Sweep (Something) Under the Rug: This idiom means to hide or conceal a problem or issue, similar to harboring it.
Keep (Something) in the Shadows: This phrase implies keeping something hidden or concealed from public view.
Keep (Something) Behind Closed Doors: This idiom suggests keeping something private or concealed from others.
Keep (Something) in the Dark: This expression means to keep someone uninformed or unaware of something, similar to harboring information.
Hold (Something) in Reserve: This idiom implies keeping something in reserve or hidden for future use.
Keep (Something) in the Vault: This idiom conveys the idea of keeping something valuable or confidential well-protected and hidden.
Lock (Something) Away: This means to keep something securely hidden or stored, often for safekeeping.
Bury the Hatchet: While not directly related to harboring, this idiom means to put an end to a long-standing conflict or grudge.