Exhibit 4.1


 


NUMBER U-


 


SEE REVERSE FOR CERTAIN DEFINITIONS


 


CUSIP 08772B 203


 


Better
World Acquisition Corp.


 


UNITS CONSISTING OF ONE SHARE OF COMMON
STOCK AND ONE-HALF OF ONE REDEEMABLE WARRANT, EACH WHOLE WARRANT ENTITLING THE HOLDER TO PURCHASE ONE SHARE OF COMMON STOCK


 


THIS CERTIFIES THAT                    is
the owner of                    Units.


 


Each Unit (“Unit”) consists
of one (1) share of common stock, par value $0.0001 per share (“Common Stock”), of Better World Acquisition
Corp., a Delaware corporation (the “Company”), and one-half of one warrant (“Warrant”). Each
whole Warrant entitles the holder to purchase one share of Common Stock for $11.50 per share (subject to adjustment). Each Warrant
will become exercisable on the later of (i) 30 days after the Company’s completion of an initial merger, capital stock exchange,
asset acquisition, or other similar business combination with one or more businesses or entities (a “Business Combination”)
and (ii) 12 months from the closing of the Company’s initial public offering (“IPO”), and will expire
unless exercised before 5:00 p.m., New York City Time, on the fifth anniversary of the completion of an initial Business Combination,
or earlier upon redemption or liquidation. The Common Stock and Warrant(s) comprising the Unit(s) represented by this certificate
are not transferable separately until ninety days following the IPO, unless EarlyBirdCapital, Inc. informs the Company of its decision
to allow earlier separate trading, except that in no event will the Common Stock and Warrants be separately tradeable until the
Company has filed an audited balance sheet reflecting the Company’s receipt of the gross proceeds of its initial public offering
and issued a press release announcing when such separate trading will begin. The terms of the Warrants are governed by a Warrant
Agreement, dated as of ___________, 2020, between the Company and Continental Stock Transfer & Trust Company, as Warrant Agent,
and are subject to the terms and provisions contained therein, all of which terms and provisions the holder of this certificate
consents to by acceptance hereof. Copies of the Warrant Agreement are on file at the office of the Warrant Agent at 1 State Street,
30th Floor, New York, New York 10004, and are available to any Warrant holder on written request and without cost.


 


This certificate is not valid unless countersigned
by the Transfer Agent and Registrar of the Company. Witness the facsimile seal of the Company and the facsimile signatures of its
duly authorized officers.


 


	 	 

        

        
	 	 

        

	By:		 	Secretary
	President	 	 


 






     


     


    

 


Better World Acquisition Corp.


 


The Company will furnish without charge
to each unitholder who so requests, a statement of the powers, designations, preferences and relative, participating, optional
or other special rights of each class of stock or series thereof of the Company and the qualifications, limitations, or restrictions
of such preferences and/or rights.


 


The following abbreviations, when used in
the inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable
laws or regulations:


 


	
         

        TEN COM
	–	as tenants in common	 	UNIF GIFT MIN ACT	–	____________Custodian __________
	TEN ENT	–	as tenants by the entireties	 	 	 	(Cust)(Minor)
	 	 	 	 	 	 	 
	JT TEN	–	as joint tenants with right of survivorship and not as tenants in common	 	 	 	
        under Uniform Gifts to Minors Act

        

        (State)



 


 


Additional abbreviations may also be used
though not in the above list.


 


For value received,                     
hereby sell, assign and transfer unto                     


 


PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF
ASSIGNEE


 


 


 









(PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS,
INCLUDING ZIP CODE, OF ASSIGNEE)


 





 



 


 





 



 





___________________represented
by the within Certificate, and do hereby irrevocably constitute and appoint


 


__________________to transfer the said Units on the books
of the within named Company with full power of substitution in the premises.


 


Dated                    


	 	 
	 	Notice: The signature to this assignment must correspond with the name as written upon the face of the certificate in
every particular, without alteration or enlargement or any change whatever.







 


Signature(s) Guaranteed:


 


		 
	THE SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE
GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE
GUARANTEE MEDALLION PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15 (OR ANY SUCCESSOR RULE).	 






 


The holder(s) of this certificate shall
be entitled to receive a pro-rata portion of the funds from the trust account with respect to the common stock underlying this
certificate only in the event that (i) the Corporation is forced to liquidate because it does not consummate an initial business
combination within the period of time set forth in the Corporation’s Amended and Restated Certificate of Incorporation, as
the same may be amended from time to time (the “Charter”) or (ii) if the holder seeks to convert his shares
upon consummation of, or sell his shares in a tender offer in connection with, an initial business combination or in connection
with certain amendments to the Charter. In no other circumstances shall the holder(s) have any right or interest of any kind in
or to the trust account.