besides
1
adv also, as well, further, furthermore, in addition, into the bargain, moreover, otherwise, too, what's more
2
prep apart from, barring, excepting, excluding, in addition to, other than, over and above, without
Collins
beside
1 abreast of, adjacent to, alongside, at the side of, cheek by jowl, close to, near, nearby, neighbouring, next door to, next to, overlooking
2 beside oneself apoplectic, at the end of one's tether, berserk, crazed, delirious, demented, deranged, desperate, distraught, frantic, frenzied, insane, mad, out of one's mind, unbalanced, uncontrolled, unhinged
beside the point
extraneous, immaterial, inapplicable, inapposite, inappropriate, inconsequent, irrelevant, neither here nor there, unconnected
Antonyms
admissible, applicable, apposite, appropriate, appurtenant, apt, fitting, germane, pertinent, relevant, significant, to the point
Collins
besides
1 prep Besides something or beside something means in addition to it.
oft PREP -ing
I think she has many good qualities besides being very beautiful..., There was only one person besides Ford who knew Julia Jameson.
Besides is also an adverb., adv cl ADV
You get to sample lots of baked things and take home masses of cookies besides.
2 adv Besides is used to emphasize an additional point that you are making, especially one that you consider to be important.
ADV with cl, not last in cl
The house was too expensive and too big. Besides, I'd grown fond of our little rented house.
Collins
beside
1 prep Something that is beside something else is at the side of it or next to it.
On the table beside an empty plate was a pile of books..., I moved from behind my desk to sit beside her.
→ besides
2 If you are beside yourselfwith anger or excitement, you are extremely angry or excited.
♦ beside oneself phrase v-link PHR, oft PHR with n
Cathy was beside herself with excitement.
→ beside the point
→ point
wingman n. 1. [Mil.] a pilot who comes in support of the leading aircraft. He is positionned besides and slightly behind the leading aircraft. 2. [Fig.] a person who helps a friend to approach potential partners
be beside oneself with exp. be consumed by an emotion; experience an intense feeling