secret; hidden from others; confidential; clandestine; a mystery

a secret personal identification number or character string used to access accounts or locks

closely; carefully; intently; used to describe paying attention or coordinating with others in a thorough way

To keep something confidential; to maintain secrecy; to guard a secret from being leaked.

Miami; city in Florida, USA

extremely close or well-integrated, such as a relationship or physical bond; inseparable

close and intimate, such as in a relationship or friendship

density; thickness; degree of concentration or closeness, such as population density or the spacing of objects

secret; confidential; classified; an important secret; confidential matters; classified information

crowded together; dense; compressed

strictly controlled; well-organized; thorough and precise without any loopholes

Smith (name); specifically Adam Smith (1723-1790), British economist, or William Smith (1769-1839), British geologist

to be closely related; to have a strong connection

To protect data, devices, or accounts with a password or secret code; to encode

to seal up; to seal hermetically or airtight

precise; accurate; exact; detailed and careful

to inform against someone or report their secret activities to an authority or the act of doing so

A room used for keeping something hidden or for secret purposes; a secret room or hidden cell.

The male protagonist of Shakespeare's Romeo and Juliet; used as a given name

Careful, thorough, and attentive to every detail; meticulous; well-conceived

informant or whistleblower; someone who reports a secret to authorities or the police

secret agent; detective; covert investigator; a person who secretly gathers intelligence or investigates confidential matters

Mississippi; referring to both the US state and the Mississippi River

numerous and close together; thickly dotted; used to describe a scene where many small things are crowded into a space

(idiom) literally the urgent beating of gongs and drums before an opera performance; figuratively used to describe intense publicity or intense, hurried preparations for an upcoming event

to conspire, scheme, or make a secret plan; usually carries a negative connotation

to leak or divulge confidential information; to let out a secret

inextricably linked; too close to be separated

To lift a secret status or remove restrictions on confidential information; to reveal previously unknown facts.

A common English surname or given name

to be densely spread or covered across an area

thick and dense, especially of vegetation or hair

careful and thorough; deliberate in thought or action

top-secret; super-secret; the highest level of security classification for information

a very close or intimate friend; a bosom friend

Milwaukee (city in Wisconsin, USA)

Missouri (US state)

dense; thick; luxuriant (of vegetation or plant growth)

Missouri, a state in the central United States; its capital is Jefferson City and its largest cities are St. Louis and Kansas City

(loanword) Miss; a title used to address a young or unmarried woman.

Michigan, a state of the United States.

to seal something tightly so as to be airtight

thick or dense clouds; heavy cloud cover

fine and dense; compact in texture or physical structure

(idiom) to be on extremely intimate terms; to have a very close relationship with no distance between one another

dense forest; jungle; thicket

To plant crops closely together by reducing the distance between rows and plants to increase the yield per unit area.

fine and closely woven, such as texture or needlework; dense

(cryptography) a secret code or string of data used to encrypt and decrypt information