Referring to an event which happens yearly. More pacifically it can refer to a book (usually coming out as a magazine, comic or comic strip) which comes out yearly. If its not a book or a comic, it may be brought out to praise some celebrity or celebrities, or even a holiday camp (such as the Butlins[?] annual).
... crowberry, red whortleberry), berried elder (Sambucus racemosa), wild raspberry and Spiraea. Bears, foxes, otters and sables are numerous, as also the reindeer in the ...