er, prep.indicates specific (as opposed to non-specific) object noun phrase in certain constructions [similar to how 'the' is different from 'a']; used to precede the object of locational, directional, source, temporal, and causal phrases.

in; at; on; to; from; of; out of; because of; for; with; by means of; about.
er
a
a
a
e
el
er
a
ak
er
a
eracont.er a
racont.er a
Examples:
> I've become very confused by my studies.
> Did you read any a single book today?
> A rumor is going around.
> Go to the store and buy us food.
> The boat hit against the dock.
Proverbs:
> It's like the foam of the sea, which forms unexpectedly and then disappears.
It's a matter that comes up for lengthy discussions and then is dropped without resolution or effect. Some things, like sea foam, drift on without settlement. Endless discussion without reaching agreement.
> You're like sardines, very many but only enough for one wrapped piece of fish.
Fish are properly wrapped individually in a leaf for cooking, but sardines are so small that a bunch of them may be wrapped together to make up only one small bundle. The idiom may be applied to a numerous but weak enemy or to a clan that is large but ineffective as in raising money for its members, or for a large group of workers who do not accomplish very much.
> Like the man of Ngerechemai, who lost his turtle and lost his canoe.
Relates to a fisherman who jumped from his canoe to catch a turtle only to find that his canoe had drifted beyond recovery. Applies to any situation where a person fails at a task, or, aptly, to a situation where a man, through his own foolishness, loses both his wife and his mistress.
> Like the people of Ngerechelong, standing together on the base of the coconut tree.
The mound or hump that forms at the base of the coconut tree is said to represent the highest ranking village clan. The leader of that clan is spoken of as "standing on the mound." In the idiom, it is suggested that the people of Ngerechelong (northern Palau) would all like to be leaders-all standing on the mound at the same time. The idiom may be applied where too many people try to direct an operation; too many leaders.
> It's like eating reboiled (starchy) food.
Cooked taro will spoil in time, unless it is reboiled (blelekl). Among other applications the saying may pertain to a man who marries, separates, then returns to the same woman; also a man who returns to a former job.
More Examples:
> There is a ghost at the mangrove channel.
> My music teacher really is good in playing guitar.
> When is his/her funeral?
> Did you hunting in the hills this morning?
> The wind is coming from the northwest.

Search for another word: