the importance of marital fidelity (=in marriage)fidelityfi‧del‧i‧ty /fɪˈdeləti/ noun [uncountable] formal 
the importance of marital fidelity (=in marriage)2when you are loyal to a person, an organization, or something that you believe in SYN loyaltyfidelity to his fidelity to the company over 25 years3 formal how much a film, a piece of written work etc remains unchanged from an earlier piece of work, or the facts that are known SYN faithfulnessfidelity to the movie’s fidelity to the original book → high fidelity
WORD ORIGINfidelity
Origin:
1400-1500 French fidélité, from Latin fidelitas, from fides ‘faith, trust’EXAMPLES FROM OTHER DICTIONARIES
- fidelity to religious beliefs
- Kip was beginning to doubt Jessica's fidelity.
- The sound fidelity of CDs is much better than that of records.
- First and last he sought only the strictest fidelity to justice, rectitude and truth.
- Transfer of training from a simulator to a real situation is never complete and does not necessarily increase with degree of fidelity.
- We gain a new sense of loyalty, steadfastness and fidelity that are not our own.
COLLOCATIONS FROM THE ENTRY the importance of marital fidelity (=in marriage)COLLOCATIONS FROM THE CORPUSADJECTIVE
1when you are loyal to your husband, girlfriend etc, by not having sex with anyone else SYN loyalty OPP infidelity: the importance of marital fidelity (=in marriage)· The first compact discs carried digitally encoded high fidelity music.· It is not widely used for research outside the military because of the cost of high fidelity simulator time.· There are few absolutes in high fidelity.
· He has been similarly evasive in answering questions about his marital fidelity and marijuana use.· Contemporary interest in quail focuses more on their taste than on their promise of marital fidelity.· Joined trees were objects of good omen; symbols of conjugal happiness and marital fidelity.
the importance of marital fidelity (=in marriage)2when you are loyal to a person, an organization, or something that you believe in SYN loyaltyfidelity to his fidelity to the company over 25 years3 formal how much a film, a piece of written work etc remains unchanged from an earlier piece of work, or the facts that are known SYN faithfulnessfidelity to the movie’s fidelity to the original book → high fidelity