look, seem.

_Appear_ and _look_ refer to what manifests itself to the senses; to a
semblance or probability presented directly to the mind. _Seem_ applies
to what is manifest to the mind on reflection. It suddenly _appears_ to
me that there is smoke in the distance; as I watch, it _looks_ like a
fire; from my knowledge of the locality and observation of particulars,
it _seems_ to me a farmhouse must be burning.

Antonyms:

be, be certain, real, _or_ true, be the fact, exist.

Prepositions:

Appear _at_ the front; _among_ the first; _on_ or _upon_ the surface;
_to_ the eye; _in_ evidence, _in_ print; _from_ reports; _near_ the
harbor; _before_ the public; _in_ appropriate dress; _with_ the insignia
of his rank; _above_ the clouds; _below_ the surface; _under_ the lee;
_over_ the sea; _through_ the mist; appear _for_, _in behalf of_, or
_against_ one in court.

* * * * *

APPENDAGE.

Synonyms:

accessory, addition, appurtenance, concomitant,
accompaniment, adjunct, attachment, extension,
addendum, appendix, auxiliary, supplement.

An _adjunct_ (something joined to) constitutes no real part of the thing
or system to which it is joined, tho perhaps a valuable _addition_; an
_appendage_ is commonly a real, tho not an essential or necessary part
of that with which it is connected; an _appurtenance_ belongs
subordinately to something by which it is employed, especially as an
instrument to accomplish some purpose. A horse's tail is at once an
ornamental _appendage_ and a useful _appurtenance_; we could not call it
an _adjunct_, tho we might use that word of his iron shoes. An
_attachment_ in machinery is some mechanism that can be brought into
optional connection with the principal movement; a hemmer is a valuable
_attachment_ of a sewing-machine. An _extension_, as of a railroad or of
a franchise, carries out further something already existing. We add an
_appendix_ to a book, to contain names, dates, lists, etc., which would
encumber the text; we add a _supplement_ to supply omissions, as, for
instance, to bring it up to date. An _appendix_ may be called an
_addendum_; but _addendum_ may be used of a brief note, which would not
be dignified by the name of _appendix_; such notes are often grouped as
_addenda_. An _addition_ might be matter interwoven in the body of the
work, an index, plates, editorial notes, etc., which might be valuable
_addit