Advisory vs. Consultancy

Able to give advice.

Example: ‘The advisory committee could only offer advice, but since that was almost always accepted they had real power.’;

Containing advice; advising.

Example: ‘The consultant's advisory recommendations were selectively adopted.’;

A warning.

Example: ‘The Coast Guard issued a small craft advisory, warning little boats to watch out for bad weather.’;

Having power to advise; containing advice; as, an advisory council; their opinion is merely advisory.

Example: ‘The General Association has a general advisory superintendence over all the ministers and churches.’;

giving advice;

Example: ‘an advisory memorandum’; ‘his function was purely consultative’;

A consultant or consulting firm.

Example: ‘For a PR campaign like never before, one needs a consultancy of unprecedented scope and power.’;

The services offered by a consultant.

Example: ‘I've been doing IT consultancy for three years.’;

the practice of giving expert advice within a particular field;

Example: ‘a busines management consultancy’;